Baseband architecture refers to all those technology elements in the phone
design which do not include the RF functions. This document describes in
overview, the HD891 baseband architecture. Primarily the focus of this
document will be to highlight those aspects of the baseband architecture which
are unique to the CDMA project.
DSP
DBUS Interface
Multipath Analyzer
Message Injection
IS 125
MIC
EAR
sio
sio
ext
mem
sio
sio
PCM
CODEC
io
A15:0,
D7:0
64K x
16
SRAM
ASIC
CDRFI
System Module
RF
SYN
C
O
N
T
REC
R
O
L
XMIT/MOD
DUP
UIF–module
LCD
io
Switche
r
Charge
FLASH
r
LOAD
MBUS
Interfac
e
Charger Control
sio
sio
io
sio
sio
ext mem
MCU
Figure 1 Baseband – Interconnections
Baseband Block Connections
Below is a list of the functional blocks of the baseband architecture:
– Microcontroller Unit (MCU)
– MCU External Memory –
Electrically Eraseable Programmable Read Only Memory (EEPROM)
Static Random Access Memory (SRAM)
Flash Memory
A19:0,D7:0
sio
16k x 8
Serial
2
PROM
E
1M x 832K x 8
FLASHSRAM
LCD Driver
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– Digital Signal Processor (DSP)
– DSP External Memory –
Static Random Access Memory (SRAM)
– CDSB ASIC
– CDMA RF to BB Interface (CDRFI)
– Audio Coder/Decoder (CODEC)
3VDOUT3.15V power supply for baseband
5VDOUT4.8V supply for MBUS and XEAR Differential Circuit
(Switched)
VAHSOUT4.8V supply for XEAR Differential Circuit (Switched),
and power for the Headset Accessory
LCD_PWROUT4.8V supply with series diode and resistor for LCD
(LCD can’t use 4.8V)
BATT_ADCOUTBattery voltage input to ADCMCU
CHAR_ADCOUTCharger voltage input to ADCMCU
CHAR_INTOUTSignal to indicate a Charger has been connected to
Phone.
UIF
Opamp
(N708) and
System Connector
UIF
ASIC
MCU Block
Table 2. MCU Block Connections
Signal NameT ypeNotesT o/From
MCU_CLKIN15.36 MHz Clk into MCUASIC
XSYS_RESETINMCU Reset from ASICASIC
MCUAD(19:0)OUT MCU 20 bit Address BusMem, ASIC
MCUDA(7:0)I/OMCU 8 bit Data BusMem, ASIC
XMCU_ASOUT MCU Address StrobeASIC
XMCU_RDOUT MCU Read used as Output EnableMem, ASIC
XMCU_WROUT MCU Write used as Read/Write selectMem, ASIC
MCU_NMIINMCU Non Maskable InteruptASIC
MCU_INT0INMCU Maskable Interupt 1ASIC
CODEC_DIOUT
CODEC_CLKOUT
Page 4–6
Audio codec control dataMCU
Clock for audio codec control data transferMCU
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Technical Documentation
Table 2. MCU Block Connections (continued)
XCODEC_CSOUT
CODEC_DOIN
Audio codec chip selectMCU
Audio codec control dataMCU
System Module
To/FromNotesTypeSignal Name
CALL_LEDOUT UIF CALL_LED enableUIF
BACK_LIGHTOUT UIF BACK_LIGHT enableUIF
PHFS_TXD2OUT Hands Free speaker Mute Control and Trans-
Sys. conn.
mitted data from Flash during Flash Programming.
HOOK_RXD2OUT Recieved data during Flash Programming.Sys. conn.
VIB_CONTOUT Vibrator Control for quit alarmSys. conn.
MBUS_OUTOUT MBUS data outputSys. conn.
VAHS_ENOUT Headset voltage enableSys. conn.
CHAR_PWMOUT Control PWM for charging batteries.PWR
WATCHDOGOUT Watchdog signal used to reset watchdog cir-
PWR
cuit
TEMP1_ENOUT Control signal to pick RFTEMP1 for A/D readMCU
TEMP2_ENOUT Control signal to pick RFTEMP2 for A/D readMCU
BATT_ADCINA/D input for battery voltage levelPWR
CHAR_ADCINA/D input for monitoring of charging voltagePWR
HOOK_RXD2INA/D input – Hook indicator (Phone on or off
Sys. conn.
Hook)
BTEMPINA/D input for monitoring Battery temp.Sys. conn.
RFTEMPINA/D input for monitoring RFTEMP 1 and 2
RF
temp.
BTYPEINA/D input for monitoring Battery type.Sys.conn.
RSSIINA/D input for monitoring RSSI.RF
JCONNINA/D input for monitoring Accessory type.Sys. conn.
MBUS_DETINMBUS data input.Sys. conn
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Technical Documentation
PAMS
MCU Memory Block
Table 3. MCU Memory Block Connections
Signal NameT ypeNotesT o/From
MCUAD(19:0)INMCU 20 bit Address BusMCU
MCUDA(7:0)I/OMCU 8 bit Data BusMCU
XMCU_RDINMCU Read used as Output EnableMCU
XMCU_WRINMCU Write used as Read/Write selectMCU
XFLASH_CSINFlash Chip SelectASIC
XSRAM_CSINSRAM Chip SelectASIC
VFIN12 volt line for Flash programmingSys. conn.
DSP Block
Table 4. DSP Block Connections
Signal NameT ypeNotesT o/From
DSP_CLKIN15.36 MHz Clk into DSPASIC
XSYS_RESETINDSP Reset from ASICASIC
DSP_INT0INDSP Maskable Interupt 0ASIC
DSP_INT1INDSP Maskable Interupt 1ASIC
DSPAD(15:0)OUT DSP 16 bit Address BusMem, ASIC
DSPDA(15:0)I/ODSP 16 bit Data BusMem, ASIC
DSP_RXWOUT DSP Read / Write SelectMem, ASIC
IO_STRBOUT DSP Master Strobe for Memory AccessMem, ASIC
Codec_FSINFrame Sync for aligning Codec audio data
ASIC
8KHz
Codec_MCLKINCLK for moving Codec audio dataASIC
PCMOUTINAudio Data from CodecCODEC
PCMINOUT Audio Data to CodecCODEC
DSP_SYNCI/OFrame Sync for aligning data in and out of
DSP. Used by MP, MI, IS125 and Data Acc.
DSP_MCLKI/OCLK for moving data in and out of DSP. Used
by MP, MI, IS125 and Data Acc.
ASIC,
Sys. conn.
ASIC,
Sys. conn.
DBUS_ININData to DSP.Sys. conn.
DBUS_OUTOUT Data from DSP.Sys. conn.
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Technical Documentation
System Module
DSP memory Block
Table 5. DSP Memory Block Connections
Signal NameT ypeNotesT o/From
DSPAD(15:0)INDSP 16 bit Address BusDSP
DSPDA(15:0)I/ODSP 16 bit Data BusDSP
DSP_RXWINDSP Read / Write SelectDSP
XDSP_CSINDSP SRAM Chip Select for Memory Access
CDSB ASIC Block
Table 6. CDSB ASIC Block Connections
Signal NameT ypeNotesT o/From
XPWR_RESET
INMaster reset from 3V switching power supplyPWR
XSYS_RESET OUT System Reset to MCU, DSP, CDRFIMCU, DSP,
CDRFI
OSC_OUTOUT 32KHz Clk outputASIC
OSC_ININ32KHz Clk inputASIC
OSC_ENINOsc. enableASIC
OSC_SELINSelect clock or BackupASIC
CDRFI_SIOUT CDRFI Serial Data InCDRFI
CDRFI_SOINCDRFI Serial Data OutCDRFI
CDRFI_SENOUT CDRFI Serial data ENABLECDRFI
CDRFI_SCLKOUT CDRFI Serial data CLocKCDRFI
CDRFI_9.8MOUT CDRFI 9.8 MHz clockCDRFI
CDRFI_IQSEL OUT CDRFI Tx IQ SELECT bit in digital mode, ad-
CDRFI
dress select bit in analog mode.
RXQ(4:0)INCDRFI RX Quadrature–phase data bits 0–4CDRFI
RXI(4:0)INCDRFI RX In–phase data bits 0–4CDRFI
DAFOUTINCDRFI DAF INput –NOT
USED HD891–
IFclkINNamps Support –NOT
USED HD891–
NoxwINNamps Support –NOT
USED HD891–
GATEOUT CDRFICDRFI
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System Module
Table 6. CDSB ASIC Block Connections (continued)
Technical Documentation
To/FromNotesTypeSignal Name
DSP_CLKOUT 15.36 MHz Clk to DSPDSP
DSP_INT0OUT DSP Maskable Interupt 0DSP
DSP_INT1OUT DSP Maskable Interupt 1DSP
DSPAD(15:0)INDSP 16 bit Address Bus (15,14,8–0)DSP
DSPDA(7:0)I/ODSP 8 bit Data BusDSP
DSP_RXWINDSP Read / Write SelectDSP
IO_STRBINDSP Master Strobe for Memory AccessDSP
XDSP_ISINDSP Data StrobeDSP
PAMS
DSP_SYNCOUT Frame Sync for aligning data in and out of
Sys. conn.
DSP. Used by MP, MI, IS125 and Data Acc.
DSP_MCLKOUT CLK for moving data in and out of DSP. Used
Sys. conn.
by MP, MI, IS125 and Data Acc.
DBUS_ININSignal used as an interupt for DBUS activitySys. conn.
Codec_FSOUT Frame Sync for aligning Codec audio data
8KHz
DSP,
CODEC
Codec_MCLKOUT CLK for moving audio Codec dataDSP,
CODEC
MCU_CLKOUT 15.36 MHz Clk to MCUMCU
MCUAD(19:0)INMCU 20 bit Address Bus (19–16,5–0)MCU
MCUDA(7:0)I/OMCU 8 bit Data BusMCU
XMCU_ASINMCU Address StrobeMCU
XMCU_RDINMCU Read used as Output EnableMCU
XMCU_WRINMCU Write used as Read/Write selectMCU
MCU_NMIOUT MCU Non Maskable InteruptMCU
MCU_INT0OUT MCU Maskable Interupt 1MCU
MBUS_DETINMBUS data input.Sys. conn
CHAR_INTINSignal to indicate a Charger has been con-
LCD_COLI/OLCD and COL/RO lines to UIFUIF
CDATTENOUT SW AGC to RFRF
RF_LIMADJINRF
RF_SCLKOUT Serial Data ClkRF
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Technical Documentation
Table 6. CDSB ASIC Block Connections (continued)
System Module
RF_SDAT AOUT Serial DataRF
RF_RX_LEOUT Latch Enable for Serial DataRF
RF_TXBOUT Tx Power Bias
RF
8bit PDM – 3.84Mhz
RF_TXREFOUT REF Level for TXIP comparator
RF
8bit PDM – 1.92Mhz
RF_AFCOUTVCTCXO control voltage
RF
8bit PDM – 3.840Mhz
RF_AGCREFOUT AUXAGCRF
RF_TXGAINOUT Offsets TX gain to RX gain –NOT
RF
USED HD891– 7bit PDM – 4.9152Mhz
RF_TXSLPOUT Correction of TX gain slope –NOT
RF
USED HD891– 7bit PDM – 1.92Mhz
To/FromNotesTypeSignal Name
RF_RXSLPOUT Correction of RX gain slope –NOT
RF
USED HD891– 7bit PDM – 1.92Mhz
RF_TXCOUT Limit maximum TX gain NOT
RF
USED HD891
8bit PDM – 4.9152Mhz
RF_PDM1OUT PDM NOT
USED HD891
RF_PDM2OUT PDM NOT
USED HD891
RF_TXPUNCOUT Enables the PARF
RF_VCO_ENOUT Same as RF RESET to CDCONTRF
RF_RFE0OUT RF Control Line RFEN0RF
RF_RFE1OUT RF Control Line RFEN1RF
RF_RFE2OUT RF Control Line RFEN2RF
RF_RFE3OUT RF Control Line FASTRF
RF_RFE4OUT RF Control Line RX_FIL_CALRF
RF_RFE5OUT RF Control Line SEL0RF
RF_RFE6OUT RF Control Line SEL1 –NOT
RF
USED HD891–
RF_RFE7OUT RF Control Line RX_CALNC
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Technical Documentation
CDRFI Block
Table 7. CDRFI Block Connections
Signal NameT ypeNotesT o/From
XSYS_RESETINXRESET When set = 0, reset registers
ASIC
to default values.
SDIINSerial Data InASIC
SDOOUT Serial Data OutASIC
SENABLEINSerial data ENABLEASIC
SCLKINSerial data CLocKASIC
CLKOUTOUT CLocK recovery OUTputASIC
TXI+OUT TX signal In–phase (+)RF
TXI–OUT TX signal In–phase (–)RF
TXQ+OUT TX signal Quadrature–phase (+)RF
TXQ–OUT TX signal Quadrature–phase (–)RF
TXD(7:0)I/OTX Data bits 0–7ASIC
R/WSELINRead/Write SELectASIC
IQSELECTINTx IQ SELECT bit in digital mode,
ASIC
address select bit in analog mode.
RXQINRX signal Quadrature–phaseRF
RXIINRX signal In–phaseRF
RXQ(5:0)OUT RX Quadrature–phase data bits 0–5ASIC
RXI(5:0)OUT RX In–phase data bits 0–5ASIC
TXAGC1OUT TX AGC controlRF
RXAGC1OUT RX AGC controlRF
ANATXOUT ANAlog mode TX signal –NOT USED
RF
HD891–
ANARX+DAFINANAlog mode RX + DAF signal –NOT USED
RF
HD891–
DAFOUTOUT DAF OUTput –NOT USED HD891–ASIC
GATEINControls TX outputASIC
VCO_ENINDisables the Clock squaring circuitsASIC
TESTINTEST input (if not used, must be on VSS)
Clock for audio codec control data transfer
Audio codec chip selectMCU
IN
External microphoneSys. conn.
IN
Differential microphone signalUIF conn
IN
Transmitted serial audio data inputDSP
Audio codec control data outputMCU
Microphone enableUIF
External received audioSys. conn.
Internal received audioUIF
MCU
Functional Description
Below is a list of the functional blocks of the baseband architecture:
– Power Management
– Microcontroller Unit (MCU)
External Memory –
Electrically Eraseable Programmable Read Only Memory (EE-
PROM)
Static Random Access Memory (SRAM)
Flash Memory
MBUS
– Digital Signal Processor (DSP)
External Memory –
Static Random Access Memory (SRAM)
DBUS
Multipath Analyzyer
– Audio Coder/Decoder (CODEC)
– CDSB ASIC
Sleep Clock Oscillator (32 KHz)
– CDMA RF to BB Interface (CDRFI)
– RF Interface
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System Module
Power Management
This section covers the power management system of the HD891
transceiver. The power management software is the same as HD881 with
some minor updates, however, the power supply section is completely
new. A highly efficient and low noise DC–DC converter is used for most of
the baseband power, and the PSL logic is replaced using a few
comparators. The charging circuit is also new.
PAMS
Technical Documentation
General
The HD891 power management section consists of charging, power–on,
watchdog, & reset circuits, and voltage regulators. The main 3V
baseband supply is generated by a buck mode dc–dc converter. Power
off quiescent current drain is 250uA while power on sleep mode current is
2mA.
Power Distribution
Power distribution to the rest of the phone is very simple. Baseband uses
the 3.15V 3VD output from the dc–dc converter. RF uses VBAT (from
VBATTERY) as a supply. UI and MBUS use the 4.8V supply (5VD). The
UI also uses VBATTERY for the LEDs and buzzer.
Figure 2
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Charging Switch/Regulator
The charging switch/regulator acts to connect the charger input to the
battery with minimal losses. To prevent overcharging the output voltage is
limited to 8.4V (+/–0.25V) when CHAR_PWM is high or 5.4V when
CHAR_PWM is low (startup). Maximum current is 1000mA. The input is
protected against transients by a varistor. Maximum dc input voltage
range is –5V to +16V.
Charging is controlled by the CHAR_PWM signal. When it is high,
charging is on. If the battery voltage is less than 5.4V charging is on
regardless of the CHAR_PWM state. Charging can only occur if the
charging voltage is greater than the battery voltage.
If there is no battery the charger will provide 8.5V working voltage to the
phone. The software should detect a no–battery condition and display a
warning in the UI. If desired, it may be possible to operate the phone in
standby, as long as the total phone current is less than 280mA.
Battery Monitor
System Module
A comparator continuously measures the battery voltage. When battery
voltage rises above 5.2V the phone will power on (watchdog reset). When
battery voltage falls below 5.0V the phone powers off. The 200mV
hysteresis prevents oscillation.
Charger Detection
When the charger input voltage rises above 5.0V and battery voltage is
above 5.2V the phone is powered on (watchdog reset). If battery voltage
is lower than 5.4V the charger automatically turns on to provide a
pre–charge. And then once the battery voltage reaches 5.2V the battery
monitor turns on the phone.
When a charger is connected and the phone is on, the CHAR_INT signal
will go high. It is possible that when the battery falls below 5.4V a false
CHAR_INT may occur even without a charger connected. This should not
be a problem because the software should have already powered down
the phone.
Watchdog
The watchdog timer is reset on power up or when the WATCHDOG input
is toggled. The minimum pulse width for either input is 10ms. Minimum
watchdog timeout is 9 seconds. If the MCU does not reset the timer by
toggling WATCHDOG (falling edge triggered) within the timeout period the
3VD output (& software) will power down.
Note: It is best to hold WATCHDOG low so a power down itself does not reset the timer!
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System Module
DC–DC Converter, Regulators, Reset
Technical Documentation
PAMS
The main 3VD supply for baseband is regulated by a DC–DC converter. It
offers 90% efficiency in normal mode and 80% during sleep. The free–run
operating frequency is 250kHz, but locks to either 307kHz (CDMA) or
340kHz (AMPS) of the PWR_CLK input signal (Note: HD891 will operate
in CDMA mode only). The PLL lock time is 10ms. To put the DC–DC
converter into sleep mode the shutdown pin and PWR_CLK should be
held low.
The 5V supply to the LCD and MBUS is from a 4.8V LDO linear regulator.
The XPWR_RESET line is released about 150ms after the 3VD output
has risen beyond 2.5V.
MCU BLOCK
The MCU block controls the user interface, link layer, upper layer protocols,
some physical layer tasks, and accessories not linked to data services. It also
executes service and diagnostics commands and manages the battery.
The block includes a Hitachi HD647534 processor ( 32K internal ROM, 2K
internal SRAM ) with access to a 1M x 8 FLASH, 32K x 8 SRAM, and 16K x 8
EEPROM. Clock and sleep control, system decode, software timers, and other
system support are incorporated into CDSB ASIC. MCU input clock will be
sourced by a 15.36 MHz clock from the ASIC. The period of an MCU state is
equal to the 15.36 MHz clock divided by two. A low power software standby
mode is invoked whenever processing lulls. The MCU communicates with
CDSB ASIC over a byte wide parallel data bus.
MCU memory pages 2 and 4 can be changed based on bits set in the CDSB
ASIC. Page 2 maybe set for EEPROM select or FLASH select. Default is
EEPROM. Page 4 maybe set for SRAM select or FLASH select. Default is
FLASH.
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External Memory
External memory accessed by the MCU:
1M x 8bit FLASH memory
– 150 ns maximum read access time
– contains the main program code for the MCU ; in the beginning
– Not all the FLASH is used, ONLY 40000 and up is available.
32k x 8bit SRAM memory
– 150 ns maximum read access time
16k x 8bit EEPROM memory (Serial)
Memory Map
PAGE 0:
H0 0000
H0 0200
Vector tables
on chip
32K bytes
the DSP program code locates also in FLASH
PAGE 0:
H0 F680
on chip
RAM
2K bytes
ROM
H0 FE80
registers
384 bytes
System Module
PAGE 1:
ASIC
PAGE 2:
EEPROM/
FLASH
PAGE 3:
SRAM
PAGE 4:
FLASH/
SRAM
PAGE 5:
PAGE 6,7:
FLASHFLASH
PAGE 8,9,A,B:PAGE C,D,E,F:
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FLASHFLASH
Figure 3 Memory Map
Page 4–17
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System Module
MBUS
MBUS interface will be implemented via serial port on the MCU. Protocol will be
DCT MBUS compatible.
DSP Block
The DSP block functions include speech processing, time critical physical layer
tasks, and multiplex sublayer tasks. The block consists of a TI LEAD processor
clocked by the 15.36 Mhz system clock. An internal upconverter and PLL
mechanism in the DSP will allow machine cycle rates up to 50 MHz. We will be
using a x 3 option, the ASIC will provide the 15.36 MHz clock to the DSP. This
will be advantageous in that a duty cycle closer to 50% could be guaranteed
without relying on the output of the VCTCXO which has the possibility of a much
wider variation. A low power sleep mode can invoked whenever processing
allows. A 64kx16 SRAM will be incorporated.
The DSP must communicate with the MCU and the CDSB ASIC. MCU
communication is directed through the CDSB ASIC to manage sleep and
interrupt timing. The mailbox function inside the ASIC provides the ”gateway” for
communications between the two processors. The digital ASIC interface is
memory mapped I/O consisting of byte wide parallel data, address lines, and
access control lines.
PAMS
Technical Documentation
The DBUS and the Multipath Analyzer/Message Injection are outputs/input of
the DSP. Only one of these comm. links may be used at a time.
The DSPU (Digital Signal Processing Unit) block is in charge of the channel and
speech coding according to the IS–96–B specifications for 8kbit VOCODERS,
and IS–3972 for 13kbit VOCODERS. The block consists of a TMS320C5xx
DSP and external RAMs. The DSP chip contains 28kword internal mask ROM
and 5k word internal and 32k word external RAM. The 64K word external RAM
is loaded with code stored in the MCU flash ROM.
The DSPU provides control and signal processing for CDMA modes of
operation.
– Control and general functions:
– communication with MCU / PC–Locals
– mode control of ASIC hardware
– RF control
– DBUS communication
– PN (Pseudo Noise) signal acquisition and monitoring
– soft & hard handoffs
– ASIC Rake Receiver demodulator control
– received data rate determination
– Multiplex Sublayer (LM) routing of data to MCU or Voice Coder
– Loopback and Markov Service Options
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Technical Documentation
External Memory
64k x 16 SRAM memory
Figure 4 shows the relative location and sizes of the memories used in the program and data spaces of the processor with 64k external SRAM.
DBUS interface will be implemented via serial port on the DSP. Protocol will be
TI DSP serial. Voltage levels will be 3 volt logic. When the DBUS is used with
the PCMCIA data tranfer card,the 3 volt logic will be converted to 5 volts by the
interface cable.
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System Module
Multipath Analyzer
The Nokia Multipath Analyzer (MA) consists of several Microsoft Windows
application programs running on a PC with a PC DSP card that will receive
(only) real–time information from the DBUS. The Clock will be provided by the
PC DSP card. The DSP will send, selected by a test bitmask, through its built–in
serial port, test data to be processed by the MA’s PC DSP card. The formatted
output from the PC DSP card will then be displayed and controlled by the end
user through the Microsoft Windows display applications.
Message Injection
The Nokia Message Injection (MI) consists of a Microsoft Window application
program running on a PC with a PC DSP card that will transmit (only) real–time
commands thru the DBUS. The Frame Sync and Clock will be provided by the
PC DSP card. The PC DSP will send, selected by a test bitmask, through its
built–in serial port, commands to the phone DSP.
PAMS
Technical Documentation
Digital ASIC Clock
The CDSB ASIC includes two primary functions: System functionality and CDMA
baseband real time signal processing. Detailed descriptions of the functionality
and interfaces are included in the CDSB ASIC specification.
System functions that are incorporated in the CDSB ASIC include: clock and
sleep control, reset control, soft watchdog timer, interrupt management, MCU
decode, UIF keyboard interface, UIF display interface, MCU software OS timer,
MBUS detection and netfree timer, DBUS detection, RF controls, synthesizer
control, codec clock generation, slotted paging mode timers, and test functions.
CDMA functions include: demodulator searcher and rake receiver, symbol
combiner, power control, AFC, de–interleaver, Viterbi decoder, convolutional
encoder, interleaver, and FIR filter.
Sleep Clock Oscillator
A low power 32 KHz sleep clock oscillator is built into the ASIC.
RF Control PDM’s
All PDM output signals can be controlled by the DSP. The DSP writes a digital
2’s complement number into a register and the serial output from the PDM
generates a signal whose average value reflects the same digital number. Note
that the output reflects a 2’s complement format.
0Mid Range Value
1 –> 127Increasing negative value
255–> 128 Increasing positive value
equal number of ’1’ and ’0’ pulses.
maximum negative value has one ’1’ pulse.
maximum positive value has zero ’0’ pulses.
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Technical Documentation
The DSP can modify the RFIPDMSRC(4:0) register to allow the DSP algorithms
to control the cdAfc, cdTxb, cdTxc, cdTxGainAdj and cdAgcRef.
All PDM outputs can be inverted by modifying the RFPDMPOL(2:0) and
RFPDMPOL(4:0) registers.
CDRFI
CDRFI is a monolithic CMOS high speed CODEC designed for use in CDMA
(Code Division Multiple Access) Digital Cellular Telephone applications. It
provides A/D conversion of the in–phase and quadrature signals in receive path
and generation of the in–phase and quadrature signals in transmit path. The
CODEC interfaces with digital chip(s) via two parallel interface (separate
interfaces for AD and DA sig
nal converters) and one serial interface (for the control DA converters).
Features
– 64–pin TQFP package.
– 3.15V 5% power supply.
– Operating temperature –30 to +85 deg C.
– Internal signal ground generation (band gap).
System Module
–CDMA mode receive path (I,Q):
– 5 bit Analog to Digital signal converters.
– Digital offset correction.
– Single ended inputs.
– 9.8304 MHz sampling rate.
– CDMA mode transmit path (I,Q):
– 8 bit Digital to Analog signal converters.
– 4’th order reconstruction filters.
– Differential outputs.
– 4.9152 MHz sampling rate.
– Digital AGC control, transmit path:
– 10 bit Digital to Analog converter.
– Single ended output.
– 19.2 kHz sampling rate.
– Digital AGC control, receive path:
– 10 bit Digital to Analog converter.
– Single ended output.
– 19.2 kHz sampling rate.
The block consists of audio codec with some peripheral components. The
codec includes an internal microphone and earpiece amplifier and all the
necessary switches for routing. The controlling of the codec is done by the
MCU. PCM–data is transferred to/from the DSP.
PAMS
Technical Documentation
– 12 bit bus for signal ADC’s.
– 8 bit bus for signal DAC’s and
analog mode signal converters.
– Serial bus for AGC DAC’s.
An ST5090 PCM codec converts analog voice to digital samples that are
processed by the DSP. It also accepts DSP processed speech, converts it to
analog and transmits the output to the handset or hands free speaker. The
CODEC samples at 8 KHz and sends/receives linear coded data to/from the
DSP over a dedicated serial port. The master clock of the CODEC is
synchronized with the RF VCTCXO and is generated by the CDSB ASIC.
CODEC set up and DTMF tone generation are controlled by the MCU via a
second serial port.
The internal earpiece is driven differentially directly from the CODEC. This
configuation allows common mode noise on the two voice signals to be rejected.
However, the XEAR signal (used for accessories) is a single signal that is driven
by a differential OPAMP circuit out the bottom connector. The differential
speech signal from the CODEC is input to this circuit to reduce the common
mode noise.
Block Description
The audio codec communicates with the DSP through a SIO (signals: PCMIN,
CODEC_FS, CODEC_MCLK and PCMOUT) . MCU controls the audio codec
functionality through a separate SIO (signals: CODEC_DO, CODEC_DI,
CODEC_CLK and XCODEC_CS).
Receive Standby Mode
Page 4–22
The codec is in standby except when keybeeps are needed. LO–output is
floating in standby and it disables the microphone bias circuit on flex.
In Call Mode
The codec is enabled and serial audio data is transferred to/from the DSP.
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RF Block Introduction
This document is divided into three major sections of the RF circuitry: the
transmitter, the receiver, and the synthesizer.
Transmitter
Functional Description
The 2170 uses CDMA spread spectrum modulation producing a channel
bandwidth of 1.23 MHz. For any transmit output level, the power is
spread over the entire channel bandwidth. The transmitter frequencies
are 1850 to 1910 MHz. There are 1200 channels in 50 kHz steps, where
each channel is 1.23 MHz wide, so several phones can operate in the
same frequency band, using the CDMA modulation to separate each
signal. The power control for the 2170 is performed in very tight 1 dB
increments, making the automatic gain control alignment a critical step in
the alignment procedures. In addition, the phone limits the PA output
power to 24 dBm.
System Module
This functional Description is comprised of three sections. The first,
section,
exiting the 2170 transmitter circuit, as well as the DC voltage supplies that
bias it.
of the transmitters control features. Finally, a circuit description is
included.
DC Power Control
The entire TX chain is turned on and off by the VR7 signal from the
baseband ASIC(D705). This signal controls 2 separate voltage
regulators, V3.6TX (N306), and V4.8TX (N305) which provide the bias
voltage and current for the entire transmitter chain, except for the PA
(N304). The PA draws it’s power indirectly from the battery connection,
through a discrete regulator circuit, consisting of a DC power transistor
(V300), which is switched on and off by V4.8TX.
During ‘non–full–rate’ operation, the TX_GATE signal from the baseband
ASIC (D705) is provided to the transmitter during a call to burst on and off
of the pre–driver (V305), driver (V303), and power amplifier (N304)
circuits that require higher current. The TX_GATE signal is simply a
control voltage used to switch on and off the higher current devices,
whether that current is drawn from the TX regulators or from the battery
directly. This is done to save current during pulsing operation of the
transmitter and to meet output power requirements when not transmitting,
even though VR7 is constantly a logic high.
DC Power Control, describes the various signals entering and
TX Gain Limiting and CDMA TX Gain Control describes the operation
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System Module
The TX Gain is designed to overcome gain variation across the band as
well as device–to–device variations. Therefore, it is possible (using
manual control when transmit limiting is off) to produce an output power
that causes the phone to produce power much higher than necessary
resulting in excessive heat. If left on even for a few minutes without
current limiting the power supply, the unit can be damaged.
TX Gain Limiting
TX Limiting is a control feature for CDMA TX operation. In some
conditions the AGC loop of the phone may call upon the transmitter to
provide more output power than the phone is specified. The TX Limiting
circuit places a ceiling or limit on the output power of the CDMA
transmitter. Transmitting above the limit might put the PA (N304) out of
its linear range of operation, resulting in excessive spurious emissions,
and draining the charge on the battery much faster.
TX Limiting is performed by comparing two voltage signals, the
TX_LIM_ADJ (TXI_REF PDM from ASIC, D705) and the TX level voltage
(TXI) from the detector diode circuit (V307). This comparison is done with
an op–amp comparator (N303). The shifted output of the op–amp is the
TX_LIM voltage signal, which is routed to the CDSB ASIC (D705) pin 95.
When the CDMA TX output is not at the limit, the TX_LIM line is logic high,
approximately 3.15 V. In CDMA operation, the TXI_REF PDM stays fixed
at a tuned voltage level. This tuned level corresponds to the TX output
power limit of 24 dBm tuned during alignment. The tuned TXI_REF PDM
line will be approximately 2.0 V, however it will change slightly over
frequency due to the alignment of the phone. The detector voltage (from
V307) directly reflects the output power of the TX PA (N304). For
maximum CDMA output power, TXI is approximately 2.0 V. Failure of the
minimum CDMA output power from the transmitter will not affect the
limiting functionality.
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Technical Documentation
Page 4–24
When TXI equals TXI_REF at the internal comparator, the TX_LIM line
goes logic low to approximately 0.0 V. This signals the CDSB ASIC to
cease requesting additional gain of the TX PA, and to actually back off on
the gain by a small amount. The CDMA TX output power drops below the
limit value and, consequently, the TXI voltage no longer equals the
TXI_REF voltage at the comparator. The TX_LIM signal then goes to a
logic high. Should the AGC loop still require additional output power to
maintain the call, it will continue to increase the TX gain, and again the
limit will be reached. The TX_LIM line will toggle, and the cycle will
continue. Thus, a way to test CDMA TX Limiting Control is to probe the
TX_LIM line with an oscilloscope and maximize the gain of the transmitter.
When the TX output power reaches the limit the TX_LIM line will toggle
continuously, appearing as a square wave 3.2 Vpp (read at R840) with an
approximate frequency of 400 Hz.
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CDMA TX Gain Control
A fundamental requirement for proper CDMA system operation is that
received signal power levels reaching the digital demodulators remain
constant. This is true for both the mobile unit and the base station. The
mobile unit must dynamically adjust the gain of its receiver to ensure that
the down converted baseband I & Q signal levels delivered to the CDSB
ASIC are always constant. The mobile must also dynamically adjust its
transmit output power so that the base station always receives the same
signal strength. The amount of gain needed at the mobile unit receiver is
used to determine how much gain to provide the mobile unit transmitter,
thus they are linked in a loop (called open loop operation).
This automatic gain control (AGC) is accomplished by a symphony of
operations between the CDSB ASIC(D705), the CDRFI(N703), and the
RX and TX AGC circuits. The gain of the CDMA transmitter is controlled
by two devices, the IF AGC IC (N308) and the AT–118 variable attenuator
(N300). To achieve a total required transmitter dynamic range of 74 dB
over frequency, temperature, and unit variations (max = 24 dBm, min =
–50 dBm), the IF AGC IC has an 85 dB AGC range, and the RF AT–118
attenuator has about 14 dB.
System Module
CDMA TX output power is controlled by the TX_IF_AGC (CDRFI, N703,
pin 5) in the baseband whose DC value can range anywhere from 0 to 3.1
V when measured on the signal TX_IF_AGC. This voltage range is then
divided and shifted down in slope to provide two DC control signals which
vary the gain of the IF AGC IC and the AT–118 variable attenuator. The
chart below shows the typical limits and the resulting attenuation of each
stage. As described in the table below, the IF AGC IC (N308) and the
AT–118 (N300) both provide two linear amplification/attenuation vs. control
signal characteristics which are simply added together to achieve the
entire dynamic range required for the transmitter.
ÁÁÁÁ
ÁÁÁÁ
Control Voltage
ÁÁÁÁ
Dynamic Range
IF AGC IC (N308)
ББББББ
ББББББ
0 to 2 V
ББББББ
85 dB
AT–118 (N300)
ББББББ
ББББББ
0 to 2 V
ББББББ
14 dB
Overall
ÁÁÁ
Range
(TX_IF_AGC
ÁÁÁ
PDM)
0 to 3.1 VDC
ÁÁÁ
(Avg.)
99 dB
The output power of the CDMA TX is determined by the CDSB ASIC
(D705). This value is a function of the received signal strength, a tuned
reference value (CloopRef) , and information provide by the CDMA
network the phone is operating within. These factors sum together to
equate to a digital value stored in a register called the TxCtr. This value is
multiplied by a slope correction value called the TX_SLOPE. The result of
this multiplication is stored in a register called the TxDAC. The TxDAC
value, still a digital word, goes through a digital to analog conversion by
the CDRFI IC (N703) to produce the TX_IF_AGC voltage.
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The TX_IF_AGC voltage is then fed into an op–amp level shifter circuit
(N302) which outputs the two DC level–shifted output signals which
control the IF AGC IC (N308) and the RF AGC AT–118 attenuator (N300)
from 0 to 2 V, approx. The TX_AGC_ADJ signal from the CDSB ASIC
(N705, Pin 115) is simply used to provide a DC voltage level from which to
adjust the slope of the RF AGC attenuator (N300) over the voltage range
of the TX_IF_AGC input. The following chart shows typical DC control
voltage levels at each AGC stage for given CDMA RF signal output
powers.
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Technical Documentation
CDMA TX
Output RF
ÁÁÁ
Signal Level
ÁÁÁ
(dBm)
AGC_REF PDM
БББББ
БББББ
23
15
10
–5
–20
–35
The Service Software provides a manual control mechanism which
provides the ability to test this transmitter control functionality. This
mechanism is called CDMA TX Manual Gain Control and is discussed in
the Troubleshooting section of this manual.
Temperature Compensation
A thermistor (R307) is mounted directly on the opposite side of the board
from the RI21007 PA (N304). The thermistor measures the temperature
of that area of the board and sends the information to the microprocessor
via the RFTEMP1 line. The microprocessor compensates for changes in
the transmitters output power by adjusting the TXI_REF PDM. The output
power variation is due to temperature variations of the PA bias current,
detector voltage and the gains of the RF driver transistors (V303, V305).
(decimal
value)
–
300–350
350–400
450–500
600–650
750–800
TX_IF_AGC
Voltage
БББББ
Level (N703,
БББББ
Pin 5)
–
1.1
1.2
1.4
1.6
2.0
IF AGC IC Con-
trol
ÁÁÁÁ
Voltage (N308,
ÁÁÁÁ
Pin 16)
–
1.7
1.6
1.4
1.0
0.6
RF ATTN Con-
БББББ
БББББ
trol
Voltage (at
C109)
–
1.6V
1.3V
0.9V
0.3V
0.8mV
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Circuit Description
IQ Modulator (N307)
The I/Q inputs from the baseband contain spread spectrum data with a
frequency range of 0 to 615 kHz. These inputs to the modulator are
differential (positive and negative inputs), driven from the baseband by the
CDRFI (N703). Beginning at the transmitter schematic page, these
inputs, labeled TXI+/– and TXQ+/–, are matched to the modulator input
load requirements for pins 1–4 of the RF2703 I/Q modulator IC (N307).
Once fed into the IQ modulator, each signal stream (I and Q) is then
frequency converted up to the intermediate frequency of 208.1 MHz, and
output on pins 6 and 7. This is accomplished by using the LO_TIF signal
from the synthesizer section at 416.2 MHz, where the modulator IC
(N307) internally divides the frequency by 2 to the resulting 208.1 MHz,
and modulates the signal with the I and Q baseband signals streams.
Additionally, the IC internally sets the Q output signal phase shifted 90
with respect to the I signal. The resulting signal is the Offset Quadrature
Phase Shift Keyed (OQPSK) modulated IF signal.
System Module
The LO input of 416.2 MHz is provided at an input power range of approx.
–30 dBm to –20 dBm which provides a required 0.06 Vpp signal into the
modulator LO input impedance (N307, pin 13) of 500 Ohms. If the input
power of the LO from the synthesizer section is too low, then the resulting
output signals from I and Q (pins 6 and 7) will not be present at 208.1
MHz. Also, if the LO signal is not locked to 416.2 MHz, the output signals
from I and Q will appear to be ‘jumping’ around in frequency and/or slowly
drifting from the fixed IF of 208.1 MHz. If the input power of the LO is too
high, then carrier leakage may occur onto the modulated signal, causing a
peak to appear in the middle of the modulated 1.25 MHz bandwidth signal.
After the upconversion and combining, the output IF signal is sent to the
IF AGC IC to perform the required gain control before filtering.
TX AGC Level Shifter (N302)
The op–amp circuit containing the AGC level shifting provides the two
AGC control outputs (0 to 2 V each) derived from the one linear AGC
control voltage input signal, TX_IF_AGC from the CDRFI (N703). By
changing the op–amp level shifting, biased by V4.8TX (N305), the
TX_IF_AGC ranges from 0 to 3.1, thus shifting both control voltages into
the IF AGC IC (N308) for a range of 0 to 2.6 V, and the RF AGC variable
attenuator (V106) to a voltage range of 0 to 2 V. The additional DC
voltage level, TX_AGC_ADJ is simply set to a constant value by the ASIC,
however, it is used during alignment and testing for a preliminary test of
the functionality of the gain in the TX Chain.
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System Module
IF AGC IC (N308)
The CDMA Automatic Gain Control Transmitter IC, or Q5505 (N308),
provides the gain control at the IF frequency, 208.1 MHz. The range of
gain is typically +39 dB to –65 dB which varies from unit to unit for a more
reasonable 85 dB total of dynamic range. The typical input signal
amplitude of –40 dBm is present at Pin 1 (CDMA+) input from the output
of the I/Q modulator. The complementary CDMA input (Pin 2) is simply
AC grounded since the input signal is not designed for differential inputs.
The RF gain is controlled by the DC value of the AGC shifted input at Pin
16, Vcontrol. As described in
typically 0 to 2.6 V, resulting in signal gain of approx. –65 dB to 39 dB.
The VCC (pins 13, 14, 15) for this IC is taken from V3.6TX (N306) and is
filtered by the ferrite bead, L300.
The differential outputs (Pins 9, 10) are matched from the load impedance
of 1 kOhm (R317) to the 50 Ohm input impedance of the next stage, a 2
dB 50 Ohm resistive attenuator (T–Pad, R318, R319, R320), by the T300
RF broadband balun filter. The broadband Balun filters the broadband
noise (DC to 128 MHz) so that it will not desense the receiver through the
rest of the gain of the TX chain. The circuit is also transformed from one
impedance to another, and from differential outputs to single–ended
output without losing any signal energy. The output of the 50 Ohm T–Pad
is then impedance matched through L301 and R322 and fed into the RF
mixer/upconverter IC (N301).
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Technical Documentation
TX AGC Level Shifter this signal ranges from
MRFIC1813R2 RF Upconverter IC (N301)
The RF upconverter IC (N301) simply subtracts the incoming fixed IF
frequency signal at 208.1 MHz from the LO_PTX UHF synthesized signal
at 2.0581 GHz to 2.1181 GHz to create the channel selected signal output
in 50 kHz steps at a final TX frequency output range of 1850 MHz to 1910
MHz. The input signal, at Pin 14, is mixed with the synthesizer LO signal
(Pin 5), and output to the final RF output signal (Pin 7). The critical mixing
design function at this stage not only creates the final output frequency,
but also every integer combination frequency from the IF and LO signal
inputs (including the LO feedthru itself). Thus, filtering the output of this
signal is required within the TX Band (1850 MHz to 1910 MHz) to prevent
any spurious output signals which are not allowed to be transmitted by the
product. The RF Upconverter IC will also provide typically 15 dB of signal
gain (termed ‘conversion gain’) for the final output signal as well.
The channel selection is controlled by the incoming LO signal, and is
programmed into the synthesizer by the baseband section. If the LO
signal appears to be off–frequency, drifting, or unlocked, refer to the
Synthesizer Troubleshooting Guide. The input power requirements are
approx. –15 dBm (50 Ohm reference) from the synthesizer section. Any
lower power level may cause the upconverter gain to decrease, and/or the
mixer not to be functional (no proper output frequency signal).
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The power supply of the IC (VDD, Pins 1, 8 and 12) is also filtered to
prevent any conducted spurious AC signals. This filtering is accomplished
by using ‘microstrip’ filters (Z135, Z136) printed on the circuit board, in
combination with all other AC bypass capacitors. The power supply for
this IC is provided by the V4.8TX (N305), which also helps isolate (filter)
the power supply signal from AC spurs.
Finally, the desired output (Pin 7) is impedance matched by an output
capacitor (C327) and another 1 dB resistive 50 Ohm RF attenuator
(T–pad, R314, R315, R316) and fed into the RF Saw Filter (Z302).
RF Filter (Z302)
This RF filter provides rejection in the RX band (1930 to 1990 MHz) to
attenuate any spurs present after the Upconverter IC (N301). Additionally,
harmonics and other spurious responses outside of the 60 MHz TX
Passband are attenuated. The insertion loss of this device in the TX band
is typically 3.7 dB.
System Module
AT–118 Variable Attenuator (V106)
The AT–118 (N300) is an attenuation stage in the RF path immediately
following the RF filter (Z302). Its purpose is to provide the remaining 14
dB of AGC required in the TX chain, and it helps suppress noise created
by the RF Upconverter IC. The RF AGC functionality is discussed in the
CDMA TX Gain Control section. The VC voltage to pin 5 of this device sets
the level of attenuation, and is typically varied from 0 to 2 V provided by
the TX AGC Level Shifter (Sec. ) over the entire AGC range (0 to 14 dB)
driven by the op–amp level shifter (N302). The IC is biased by Pin 3 , VS,
driven by the V3.6TX (N306) regulator.
The attenuator is followed by another 1 dB resistive T–pad (R311, R350,
R351), and then fed into the driver amplifiers.
1st and 2nd PA Driver Stages (V303, V305)
The first gain stage (V305) is a BJT amplifier in the common emitter
configuration. This stage typically provides 11dB of gain. The second
gain stage (V303) has the same configuration and typically provides 11dB
of gain. Both are actively biased using current driver circuits, V309 and
V308, which are switched on and off by the TX_GATE control signal
during pulsed operation. Overall, the bias current is provided by the
V4.8TX (N305) regulator, and is mostly controlled by the collector bias
resistor for each amplifier.
The first gain stage, V305, should be biased with approximately 4.2 V on
the collector and 0.7 V on the base. V309 dual PNP transistor circuit acts
as a switch, sourcing constant current to V305 when the TX_GATE
voltage goes high. Both transistors should have 4.2 V on each collector
(Pins 3, 6) when they are switched on. Also, both transistors use
microstrip inductors (Z705, Z129) on the collectors to help provide an RF
frequency choke, and to help match the output impedance.
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System Module
The second gain stage, V303, should be biased the same with
approximately 4.2 V on the collector and 0.7 V on the base. The current
bias circuit of V308 acts the same as the circuit of V309 for the first stage,
except that the bias current is increased slightly by R344 to provide better
linearity performance due to the higher RF input power to the amplifier.
The first stage (V305) includes a two–element input matching circuit
consisting of a microstrip inductive element (Z704) printed on the circuit
board and a series input capacitor (C312). The second stage (V303)
simply uses one shunt input capacitor (C308).
RF Filter (Z301)
This RF filter is the same as that described in RF Filter (Z302) and helps
provide more attenuation of the out–of–band frequency components still
present in the signal before it is amplified by the PA (N304).
The output of the RF filter is fed into a 50 Ohm characteristic impedance
microstrip line (Z146) to keep a matched termination into the PA (N304).
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Technical Documentation
RI21007 Power Amplifier (N304)
The RI21007 (N304) Power Amplifier (PA) typically provides 25 dB of gain
and up to 30dBm output power. The most important aspect of the power
supply voltage is that a clean, stable supply voltage is supplied to the IC
so that the PA will not oscillate. As can be seen from the TX schematic
page, numerous bypass capacitors and RF chokes (inductors) of both
microstrip and ferrite beads are used in the PA’s bias circuitry, all from the
DC output of the voltage regulator transistor (V300) to the PA IC (N304).
These include the microstrip elements Z147, Z148, and Z152 and all of
the bypass capacitors to ground on Pins 1, 4, 5, 7, 9, 10, 14, and 16.
Inside the PA IC, the bias current drawn from VBAT is increased directly
with increasing output power to ensure linear performance. Thus, as the
TX gain is increased, the current will increase as well, causing the PA to
generate much more heat. The board will typically get extremely hot, to
the point of suffering possible permanent damage, if the board is left in an
offline high output power state for long periods of time. The VCC bias
voltage remains constant at 6.2 V, set by the voltage regulator circuit
(V300) described below.
The PA is switched on and off by the TX_GATE voltage FET driver switch
(V302) which will toggle Vref (Pins 10, 14). When Vref is low, the PA IC
wio;ll shutdown into standby mode, while the chip is still biased by VCC.
The PA output should NEVER be probed without using the proper
high–power attenuator tips provided with each passive/active probe
used. This can damage the probe.
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PA Bias Circuitry (V300)
The PA is provided with a constant voltage source at 6.2 V using the
FZT749 PNP power transistor (V300). This circuit is devised to provide a
constant base bias current, since the collector is set to a constant voltage
from the V301 current bias circuit. This circuit is enabled by the V4.8TX
(N305) regulator, where the base voltages of both NPN transistors (V301)
is set to approx. 2.3 V. This sets the emitter voltages to 2.3 – 0.7 = 1.6 V,
which in turn provides the bias current on the emitter resistors for both
transistors (V301). The voltage limiter circuit comprising of V300 and V301
serves to limit the supply voltage into the PA(N304) to 6.2 V.
Additionally, the large capacitor C300 is provided to keep the voltage bias
circuitry from becoming unstable and oscillating as the PA is burst on and
off by the TX_GATE control voltage. At worst case, the maximum battery
voltage occurs as the PA is at maximum gain, thus the power transistor,
V300, will dissipate quite a lot of power from the voltage drop and high
current. Depending on the battery capacity, however, the battery voltage
will typically drop as the PA current is increased. The power transistor and
the PA (N304) are mounted directly above/below each other to heat sink
on the PC board together to decrease the junction temperatures of each
device.
System Module
Detector (V114)
The PA’s RF output power is sampled by a capacitively coupled schottky
diode detector. The detector produces a DC voltage that is proportional to
the PA’s RF output power. The DC output voltage decreases as RF power
increases. The typical detector voltage will vary from 0 to 2.5 V, however
its maximum is set during the tuning and alignment process since it is
used to determine the TX limiting value.
Note it is unwise to probe the detector @ C343 to read the detector output signal. Doing so will load it down, providing inaccurate readings. It is better to probe at the input of
the op–amp comparator, pin 3. If the phone has passed alignment and test, the detector
voltage will not be any higher than the TX_LIM_ADJ average (DC) voltage, since this will
cause the TX_LIM signal to toggle high to control the TX AGC.
Isolator (Z300)
The Isolator isolates the PA from the Duplexor. The isolator provides a
stable 50 ohm load for the PA by absorbing any reflected power from the
Duplexor.
Duplexor (Z102)
The Duplexor isolates the transmit signal from the receiver path and
permits the phone to transmit and receive signals simultaneously (i.e. Full
Duplex operation). The Duplexor is a three terminal, dual frequency (RX
and TX) bandpass splitter/filter and provides the common antenna
connection to the TX and RX circuits. The transmit signal enters the
Duplexor at the “TX” port and exits from the “ANT” port. The Duplexor is
the largest device on the PCB and can be found on the RX schematic.
The TX Chain should not be troubleshot without a proper load on the
duplexor. Otherwise, false RF gain and/or power levels may be present.
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System Module
Thermistor (R307)
The thermistor R141 changes resistance as a function of its temperature.
The voltage across this device comprises the RFTEMP1 signal to the
MCU (D700). It is placed near the power transistor (V300) and the power
amplifier (N304) for worst–case board temperature measurements.
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Receiver
Functional Description
The 2170 uses a single–mode CDMA receiver, which will downconvert a
1.23 MHz wide signal down to the baseband modulated signal, 615 kHz in
bandwidth. The receiver uses a heterodyne deisgn technique where the
incoming signal is down converted from the PCS RX Band, 1930 MHz to
1990 MHz, to a fixed IF frequency at 128.1 MHz, filtered, then down
converted to it’s quadrature components at baseband. After filtering, the
baseband modulated I and Q signal components are then digitally
processed to recover the original data. The receiver output is 2 data
signals, I and Q, each 615 kHz wide, which are sent to the baseband
section.
The receiver contains Automatic Gain Control (AGC) circuitry which allows
the I and Q output signals to remain at the same levels, given a range of
input signal power at the antenna port from –25 dBm to –104 dBm. The
entire receiver is enabled by a logic high (+3.1 V) on the SYN_PWR_ON
signal from the baseband ASIC. The receiver power supply is provided by
2 main regulators on the power schematic page, V4.8RX (N1) and
V3.6RX (N5). After the synthesizer Local Oscillators settle to the right
frequency, the receiver will provide filtered I and Q output signals.
System Module
Antenna and Test Jig
The receiver chain begins at the antenna. The antenna is impedance
matched with 2 microstrip components, Z701 and Z506, printed on the
PCB, and 2 surface–mount components, L1 and C1. Since there is no RF
connector provided with the 2170 design, the unit must be placed in a
specified test jig for debugging. Without the ability to input a proper power
level RF signal with the test gig, little can be done to troubleshoot the
receiver. The test jig will bypass the antenna and inject an RF signal
directly into a matched impedance at the duplexor.
Duplexor (Z2)
The Duplexor, Z2 is a 3–port device (antenna, RX, and TX) which serves
to isolate the transmit signal from the receiver path, and vice versa. The
received signal proceeds from the antenna port through to the RX port
with minimum insertion loss (max. 4.3 dB). For the RX signal, the
duplexor will attenuate any interfering signals from outside the receive
band (1930–1990 MHz), and most importantly, it attenuates the
simultaneous transmit signal output from the PA (N304). The filtered
signal then proceeds through C11 into the RX Low–Noise Amplifier (LNA,
V1).
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System Module
1st LNA (V1) and Active Bias (V3)
The first LNA, V1, provides approximately 14 dB of gain to the RX chain.
The current source to this device originates from the active bias circuitry
consisting two transistors (V3) providing constant current to V1. The
collector current to V1 is mainly controlled by R3 and R15, whereas the
base current is controlled by R7. Additionally, R12, and R13 set up the
voltage dividing ratio for the voltage bias for V3. The RF gain is provided
by the V1 transistor, where input and output matching component values
(such as L2, L6, and C7) are also critical to this device so that proper gain
is achieved without adding thermal noise to the signal. This section is one
of the most critical in the RX chain, since it dominates the receiver noise
figure. This stage amplify the RX–signal before the first RF SAW filter in
order to achieve an acceptable NF. If the LNA is malfunctioning, it is
probably due to a bad component which will be determined in the DC
Voltage Check section. The supply voltage for the LNA active bias circuit
is the V4.8RX signal provided by the N1 regulator, when ‘SYN_PWR_ON’
is high (3.1 V).
PAMS
Technical Documentation
RX SAW Filters (Z1, Z706) and 2nd LNA (N2)
The RX SAW Filters (Z1, Z706) and the 2nd LNA provide a clean desired
RX signal within the passband (from 1930 to 1990 MHz) to the input of the
mixer. The RX SAW Filters are provided on either side of the 2nd LNA
stage to further attenuate signals outside of the RX passband, especially
the TX–signal and the image. Both SAW Filters have a maximum
insertion loss of 5 dB, and will reject signals in the transmit band
(1850–1910 MHz) by at least 15 dB, and image frequency band
(2186–2246 MHz) by approx. 28 dB.
The 2nd LNA (N2) provides another 10 dB of gain to help overcome the
loss from the SAW filters. This LNA uses the V4.8RX power supply on Pin
7. Additionally, power supply filtering is accomplished by L4, C16, C18,
and C19. The LNA IC is impedance matched to 50 Ohms, thus no
matching components are necessary between the SAW filters.
Mixer (N6)
The mixer is a three port GaAs passive device. Of the five pins, two are
grounded. The remaining three constitute the RF, LO and IF ports. The
received signal (1930–1990 MHz) enters the mixer at pin 1, the RF port.
The received signal strength may be as low as –90 dBm, after
amplification. The LO_PRX signal is a high–side injection from the
synthesizer, at 2058.1 MHz to 2118.1 MHz. This LO signal is provided in
50 kHz steps to select the proper incoming channel frequency, producing
a conversion to the fixed IF frequency of 128.1 MHz (i.e. 2058.1 MHz
minus 1930 MHz = 128.1 MHz).
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NHP–4
Technical Documentation
The LO_PRX signal originates from the UHF synthesizer and enters the
mixer at pin 3, the RF port, through a 3 component matching network (R8,
L5, C20). The LO_PRX signal is strong, minimum +4 dBm, and should be
present and locked shortly after the ‘SYN_PWR_ON’ signal is turned on.
If the locked signal is not present, then it is required to debug the
synthesizer. It should always be 128.1 MHz greater in frequency than the
received signal. These two incoming signals mix within the device and
produce the 128.1 MHz IF signal at the IF port, pin 2.
The mixer will produce every integer combination of the two incoming
frequencies at the RF and LO ports which require filtering at the desired IF
frequency of 128.1 MHz, accomplished by Z103. The insertion loss at the
mixer is approx. 8 dB.
IF AMP (V4) and IF SAW (Z103)
The IF Amplifier (V4) is configured much the same way as the 1st LNA
(V1). It is provided a constant current bias from V5, where the collector
current for V1 is mainly controlled by R24, R25, and R26, and the base
current is controlled by R14. Additionally, the voltage ratios for biasing the
constant current circuit (V5) are set by R16 and R27. The overall power
supply is provided by V4.8RX (from N1 regulator) as well. The input and
output impedance matching is provided by L14, C61, L9, and C33. The IF
Amp (V4) provides 15 dB of signal gain at 128.1 MHz. The resulting
output signal is sent to the IF SAW filter (Z103).
System Module
The IF SAW filter (Z103) is required to tightly filter out all of the remaining
frequency components outside the actual signal bandwidth (1.23 MHz) at
the fixed IF frequency (128.1 MHz). This prevents the receiver from
demodulating interference from adjacent channel signals which may be
much stronger than the desired channel signal. The filter input is
connected single ended and the output is differential coupled to the AGC
Amp. The input impedance is matched to the previous stage by L34, and
C59. The differential outputs from the SAW are used from Pins 5 and 6,
and the output is matched by components L10 and L7. The insertion loss
of the IF filter is approx. 13 dB. This is the final stage of filtering before
the desired signal is converted down to baseband. The output signals are
sent to the AGC IC (N9) for gain control.
AGC IC (N9)
The AGC IC (N9) will provide a constant signal level to the quadrature
demodulator (N8) given an entire range of input signal amplitudes from
the output of the IF SAW. The AGC IC will provide up to 90 dB of dynamic
range, from –45 dB of attenuation, to +45 dB of gain. The gain is
controlled by a DC voltage on Pin 16 (Vcontrol) which will range from 0.1
to 3.0 V. A level shifter/inverter circuit (N7) is provided to convert the DC
voltage signal on RX_IF_AGC from the voltage range of 2.5 V to 0.5 V as
described in the table below.
RX_IF_AGC DC V oltage
БББББББ
Issue 1 04/99
2.5 V
0.5 V
Vcontrol DC Voltage
ББББББББ
(N9, Pin 16)
0.1 V
3.0 V
RF Gain at 128.1 MHz
БББББББ
(N9)
–45 dB
+45 dB
Page 4–35
NHP–4
System Module
The baseband section uses DSP to determine the amplitude of the
incoming I and Q baseband signals. The baseband then controls the
RX_IF_AGC voltage to produce the equivalent of –13 dBm (into 50 ohms)
at the RX_I and RX_Q signal outputs of the BBFIL (N10). Unlike
conventional RF power detection methods, the RSSI (Receive Signal
Strength Indicator) is then calculated using DSP from the resulting
RX_IF_AGC voltage and the RX_I and RX_Q signal levels.
The output of the AGC Amp is 2 open collectors. The supply voltage to
drive the output is connected through L12 and L13. An attenuator is
placed after the AGC Amp. (R29, R30 and R31). Additionally, the power
supply for the AGC IC (Pins 13, 14, 15) and output signal bias (Pins 9 and
10) are filtered by the ferrite bead, L11, and bypass capacitors, C39, C42,
and C41. The IC is supplied by the V3.6RX supply (N5). After the signal
level is adjusted, the constant amplitude RF signals at 128.1 MHz are then
passed to the I/Q demodulator.
Quadrature Demodulator (N8)
PAMS
Technical Documentation
The purpose of N8 is two–fold. The first is to convert the incoming RF
signal (128.1 MHz, 1.23 MHz bandwidth) down to baseband (DC to 615
kHz) by mixing with a LO signal from the synthesizer. The second is to
split the incoming signal into the quadrature components, each 90
degrees out–of–phase, thus performing the first step in demodulating the
incoming CDMA signal.
The LO_RIF signal provided by the synthesizer to Pin 13 is at 256.2 MHz,
and is divided down internally by the IC to 128.1 MHz, which then mixes
directly with the input signal to 0 Hz. However, since the carrier is
suppressed in the CDMA signal, the resulting I and Q single–ended (with
respect to ground) output signals are DC blocked by C51 and C52 from
the next stage, the BBFIL (N10). C47 provides an AC bypass for the
power supply at Pin 14, supplied by the V3.6RX regulator (N5). The
Quadrature demodulator provides typ. 23 dB of signal gain, but cannot
easily be measured due to the conversion of frequency.
Additionally, if the LO_RIF signal is unlocked or not present at 256.2 MHz,
then the receiver will fail tests, and troubleshooting is required in the
synthesizer.
BBFILCT (N10)
Page 4–36
The BBFILCT IC (N10) serves to filter and amplify the demodulated
baseband I & Q signals before delivering them to the CDRFI IC (N703) for
A/D conversion. The gain of this stage is 31 dB. The I & Q signals enter
this IC at pins 20 and 13 via C52 and C51 respectively. This IC is
calibrated dynamically to overcome variations due to temperature
changes. During normal operation, pin 3 of N10 will be pulsed about
every 10 seconds by the RX_FIL_CAL_3V signal. The BBFILCT DC
supply should be approximately 3.1 V at Pins 4, 8, and 15. The BBFIL is
turned on by the BBFIL_CNTRL signal baseband CDSB ASIC (D705)
which is controlled by the software timing in the ASIC.
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Technical Documentation
There is a FET switch (V6) that controls the digital control signal,
BBFIL_CNTRL. Thus, when the BBFIL_CNTRL is logic high (3.0 V), the
BBFILCT (N10) will be on. Additionally, the 9.8304 MHz signal is used by
the BBFILCT IC (N10) as its clock, since the IC is a digital filter. If the
9.8304 MHz signal from the CLOCKS (synthesizer) section is unlocked,
not present, or not the right amplitude, the BBFILCT will not properly filter
the I and Q baseband signals.
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System Module
Synthesizer
The synthesizer module generates the oscillations necessary for the
operation of the phone. It provides the clock signal for digital ICs and it
creates the UHF and VHF oscillations needed to up convert baseband
signals to RF frequencies and down convert RF signals to baseband.
There are four synthesizers and one frequency multiplier in the 2170
phone all based on the Motorola SEA3 15.36 MHz VCTCXO (G100).
Two signals, the 2 GHz UHF channel selector (LO_PRX, LO_PTX) and
the TX VHF local oscillator (LO_TIF) at 416.2 MHz, are generated by the
Fujitsu MB15F03 dual phase–lock loop chip (N101). The third signal, the
RX VHF local oscillator (LO_RIF) at 256.2 MHz, is generated by the
Fujitsu MB15E03PFV1 single phase–lock loop chip (N106). The fourth
signal generated in the CLOCKS section, is the 9.8304 MHz data clock
used in the baseband section generated by the Motorola MC145162D
phase–lock loop chip (N102).
PAMS
Technical Documentation
The last signal generated in the CLOCKS section is the 19.2 MHz
reference frequency for the synthesizers which is created simply by
filtering a fundamental harmonic divided down from the 15.36 MHz crystal,
thus constituting a frequency multiplier circuit rather than a phase–lock
loop.
The VCTCXO Clock (G100)
A Motorola SEA3 15.36 MHz VCTCXO (G100) creates the common
reference frequency (clock) for the phone. Biasing this device requires
3.0 V on pin 4, V
tuned from a voltage created by the AFC originating from the CDSB ASIC
(D705). This tune voltage at pin 1 will be fixed within a range between
1.50 V to 2.50 V, due frequency tracking based on the received signal.
The 15.36 MHz clock signal is routed to the Motorola PLL IC (N102, Pin
8), and the CDRFI IC.
DD, from the V3.0TCXO Regulator. The VCTCXO is
The Fujitsu Dual PLL Frequency Synthesizer IC (N101)
This IC provides the internal circuitry for both phase–lock loops for the 2
GHz channel selectors (LO_PRX, LO_PTX) and the TX IF LO (LO_TIF).
The IC uses two power supply signals which are powered on at all times,
VccRF (Pin 12) and VccIF (Pin 5), which must both be provided to Vcc’s
for the chip to be functional at all. Either RF signal on the IC are powered
down separately for the power saving signals (active low), using Pins 7
(PSif) and 10 (PSrf) for the TX IF LO (LO_TIF) and the 2 GHz UHF Signal
(LO_PRX, LO_PTX), respectively. The PSrf signal is high when the 2
GHz signal is provided during both RX ON and TX ON states, where the
PSif signal is only high when the TX IF LO (LO_TIF) is provided.
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The IC is programmed serially using the latch enable Pin 14 (SYN_LE1),
data Pin 15 (SYN_DAT), and clock Pin 16 (SYN_CLK) are provided from
the CDSB ASIC (D705, BB, Sheet 6). Within the data words, the selector
bit is provided to determine which half of the IC is programmed, the TX IF
or the RF.
The supply voltage, VCC, for the chip (Pins 12 and 5) is provided by 2
separate voltage regulators. VccRF (Pin 12) uses an active regulator
(V105) to step down supply voltage directly from a 4.8 V supply
(V4.8SYN2) to the proper 3.6 V for the Fujitsu IC. VccIF (Pin 5) is
connected directly to 3.6 V (V3.6SYN2). Both Vcc signals provide the
proper AC coupling to GND for filtering any RF signals on the voltage
supply signals.
The OSCin (Pin 2) is a 19.2 MHz 500 mVpp signal from the CLOCKS
section which is used for the reference frequency for both PLL’s.
The 2 GHz UHF Channel Selector (LO_PRX, LO_PTX)
The channel selector frequency range is 2058.1 MHz to 2118.1 MHz
which is used by the receiver (LO_PRX) and transmitter (LO_PTX) in 50
kHz steps to convert the transmit and receive signals to proper output
signal frequencies. The phase–lock loop (PLL) consists of the Fujitsu IC
(N101), the passive loop filter (C153, C157, R139, C150, R137), and the
Matsushita Voltage Controlled Oscillator (VCO, G101). By using a filtered
DC signal, the VCO outputs the 2 GHz UHF signal, which is feedback into
the Fujitsu IC Pin 13, to complete the loop. The signal acquires lock
within approx. 20 ms from the power–up signal of the synthesizer section
(VR1), and about 15 ms from power–up signal of the IC (SYN_PWR_ON).
This signal is split into 2 separate amplifiers/buffers (V103 for LO_PTX,
V108 for LO_PRX) and then feed into the transmitter/receiver as needed
when each section is powered up. The TX buffer (V103) is only on when
the TX section is on.
System Module
The LO_PRX signal level is 5 dBm into 50 Ohm load at the mixer input
matching network, while the LO_PTX is –4 dBm. The UHF VCO (G101)
uses R141 to regulate the DC supply voltage (Pin 8) from 4.8 VDC
(V4.8SYN2) down to 4.5VDC.
The 416.2 MHz TX VHF LO (LO_TIF)
The phase–lock loop for the fixed TX VHF signal (LO_TIF) at 416.2 MHz
consists of the Fujitsu IC (N101), the passive loop filter (C125, C128,
R118, R115, C130), and the discrete VCO (V100, V102). The VCO
outputs the 416.2 MHz signal into the proper filtering, which is also feed
back into the Fujitsu IC (N101, Pin 4) to complete the loop.
Again, the signal acquires lock within a few milliseconds, and is used by
the transmitter to convert the baseband signal information to an IF
frequency. The TX VHF VCO (V100, V102), and corresponding internal
circuitry of the Fujitsu IC (N101) are only powered up with the TX ON
state.
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NHP–4
System Module
The LO_TIF signal level is approx. –15 dBm (referenced to 50 Ohm) at
the TX LO modulator matching network. This corresponds to an actual
input voltage level of 0.06 Vpp at the input of the TX modulator IC (N307,
Pin 13).
Technical Documentation
PAMS
The 256.2 MHz RX VHF LO (LO_RIF)/Fujitsu Single PLL Frequency
Synthesizer IC (N106)
This IC provides the internal circuitry for the 256.2 MHz RX VHF (LO_RIF)
phase–lock loop. The IC uses a single power supply signal, Vp (Pin 3)
which is powered on when SYN_PWR_ON is on. When the phone is not
in RX ON state (SYN_PWR_ON is high), the IC is powered down
separately using the PS (Pin 12) power saving signal (active low). The
VR2 signal provides this, and is used to simply provide a delay after the
synthesizer is turned on to let the crystal settle to the proper frequency.
The IC also programmed serially using the latch enable Pin 11(SYN_LE2),
data Pin 10 (SYN_DAT), and clock Pin 9 (SYN_CLK) are provided from
the CDSB ASIC (D705, BB, Sheet 6).
The supply voltage, VCC, and the charge pump voltage, Vp, for the chip
(Pins 3, 4) is provided by the V3.6SYN2 regulator (N103). Both signals
are provided with the proper AC coupling to GND for filtering any RF
signals on the voltage supply. The phase–lock loop for the fixed RX VHF
signal (LO_RIF) at 256.2 MHz consists of the Fujitsu IC (N106), passive
loop filter (C182, C181, R155, R154, C179)M, and the discrete VCO
(V109, V107). The VCO outputs the 256.2 MHz signal into the proper
filtering, which is also fed back into the Fujitsu IC (N106, Pin 8) to
complete the loop. This signal acquires within several milliseconds, and is
used by the receiver to convert the IF signal down to baseband. The
256.2 MHz signal is powered up anytime the phone is in RX ON state.
The OSCin (Pin 1) is the 19.2 MHz 0.5–Vpp signal from the CLOCKS
section which is used for the reference frequency. The LO_RIF signal
level is approx. –10 dBm (referenced to 50 Ohms) into the RX
demodulator LO matching network.
Motorola MC145162D PLL IC (CLOCKS, N102)
The Motorola MC145162D (N102) is used to generate the 9.8304 MHz
baseband clock used by the CDRFI (N703), the 19.2 MHz reference
frequency for all other VHF/UHF synthesizers, and the digital filter,
BBFILCT (N10) in the receiver.
Page 4–40
The IC is powered by V3.6SYN2 (N103) anytime the RX ON state is
active. The OSCin signal (Pin 8) is provided by the VCTCXO (G100), and
is programmed by the clock (SYN_CLK, Pin 1), data (SYN_DAT,Pin 3),
and latch enable (SYNLE3,Pin 4) provided from the CDSB ASIC (D705).
These data lines program the reference divider and phase detector
circuitry to provide the 9.8304 MHz PLL.
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NHP–4
Technical Documentation
9.8304 MHz Baseband Clock
This signal is created by using the PLL circuitry on the Motorola
MC145162D, a passive loop filter (C138, C139, R129, R126, C164), and a
discrete VCO (V106, V104). The VCO is powered by V4.8SYN (N100)
with the proper bypass filtering for a clean power supply. The output
signal is approx. 1 Vpp, and is fed back to the Motorola PLL IC (N102) to
complete the loop. The output signal is used by the CDRFI IC to provide
the baseband clock back to the ASIC for specific data processing
applications.
19.2 MHz Synthesizer Reference
The 19.2 MHz synthesizer reference is generated by using the “Divide by
4” output signal from the Motorola PLL IC (N102) to create a 3.84 MHz
fundamental frequency (square wave) with dominant odd order
harmonics. The 5th harmonic of the signal (5 x 3.85 = 19.2) is then
filtered by a bank of coupled resonator LC circuits, then amplified (V101)
to approx. 0.5 Vpp level.
System Module
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NHP–4
System Module
Technical Documentation
Parts List– GR2 _11
p.n 0200996 EDMS issue 18
ItemCodeDescriptionValueType
R0011430726Chip resistor100 5 % 0.063 W 0402
R0021430722Chip resistor68 5 % 0.063 W 0402
R0031430706Chip resistor15 5 % 0.063 W 0402
R0071430774Chip resistor6.8 k5 % 0.063 W 0402
R0081430752Chip resistor820 5 % 0.063 W 0402
R0121430762Chip resistor2.2 k5 % 0.063 W 0402
R0131430754Chip resistor1.0 k5 % 0.063 W 0402
R0141430790Chip resistor27 k5 % 0.063 W 0402
R0151430724Chip resistor82 5 % 0.063 W 0402
R0161430752Chip resistor820 5 % 0.063 W 0402
R0171430780Chip resistor12 k5 % 0.063 W 0402
R0181430770Chip resistor4.7 k5 % 0.063 W 0402
R0191430800Chip resistor68 k5 % 0.063 W 0402
R0201430796Chip resistor47 k5 % 0.063 W 0402
R0211430770Chip resistor4.7 k5 % 0.063 W 0402
R0221430738Chip resistor270 5 % 0.063 W 0402
R0231430720Chip resistor56 5 % 0.063 W 0402
R0241430720Chip resistor56 5 % 0.063 W 0402
R0251430732Chip resistor180 5 % 0.063 W 0402
R0261430700Chip resistor10 5 % 0.063 W 0402
R0271430764Chip resistor3.3 k5 % 0.063 W 0402
R0281430754Chip resistor1.0 k5 % 0.063 W 0402
R0291430728Chip resistor120 5 % 0.063 W 0402
R0301430728Chip resistor120 5 % 0.063 W 0402
R0311430714Chip resistor33 5 % 0.063 W 0402
R0321430804Chip resistor100 k5 % 0.063 W 0402
R0331430778Chip resistor10 k5 % 0.063 W 0402
R1001430728Chip resistor120 5 % 0.063 W 0402
R1011430788Chip resistor22 k5 % 0.063 W 0402
R1021430780Chip resistor12 k5 % 0.063 W 0402
R1031430744Chip resistor470 5 % 0.063 W 0402
R1041430744Chip resistor470 5 % 0.063 W 0402
R1051430702Chip resistor12 5 % 0.063 W 0402
R1061430700Chip resistor10 5 % 0.063 W 0402
R1071430710Chip resistor22 5 % 0.063 W 0402
R1081430710Chip resistor22 5 % 0.063 W 0402
R1091430788Chip resistor22 k5 % 0.063 W 0402
R1101430740Chip resistor330 5 % 0.063 W 0402
R1111430776Chip resistor8.2 k5 % 0.063 W 0402
PAMS
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Technical Documentation
R1121430762Chip resistor2.2 k5 % 0.063 W 0402
R1131430690Chip jumper0402
R1141430700Chip resistor10 5 % 0.063 W 0402
R1151430764Chip resistor3.3 k5 % 0.063 W 0402
R1161430726Chip resistor100 5 % 0.063 W 0402
R1171430758Chip resistor1.5 k5 % 0.063 W 0402
R1181430730Chip resistor150 5 % 0.063 W 0402
R1191430700Chip resistor10 5 % 0.063 W 0402
R1201430784Chip resistor15 k5 % 0.063 W 0402
R1211430730Chip resistor150 5 % 0.063 W 0402
R1221430790Chip resistor27 k5 % 0.063 W 0402
R1231430716Chip resistor39 5 % 0.063 W 0402
R1241430808Chip resistor150 k5 % 0.063 W 0402
R1251430788Chip resistor22 k5 % 0.063 W 0402
R1261430764Chip resistor3.3 k5 % 0.063 W 0402
R1271430798Chip resistor56 k5 % 0.063 W 0402
R1281430754Chip resistor1.0 k5 % 0.063 W 0402
R1291430754Chip resistor1.0 k5 % 0.063 W 0402
R1301430772Chip resistor5.6 k5 % 0.063 W 0402
R1311430740Chip resistor330 5 % 0.063 W 0402
R1321430804Chip resistor100 k5 % 0.063 W 0402
R1331430784Chip resistor15 k5 % 0.063 W 0402
R1341430760Chip resistor1.8 k5 % 0.063 W 0402
R1351430726Chip resistor100 5 % 0.063 W 0402
R1361430690Chip jumper0402
R1371430760Chip resistor1.8 k5 % 0.063 W 0402
R1381430690Chip jumper0402
R1391430738Chip resistor270 5 % 0.063 W 0402
R1401430730Chip resistor150 5 % 0.063 W 0402
R1411430710Chip resistor22 5 % 0.063 W 0402
R1421430738Chip resistor270 5 % 0.063 W 0402
R1431430776Chip resistor8.2 k5 % 0.063 W 0402
R1441430772Chip resistor5.6 k5 % 0.063 W 0402
R1451430780Chip resistor12 k5 % 0.063 W 0402
R1461430710Chip resistor22 5 % 0.063 W 0402
R1471430754Chip resistor1.0 k5 % 0.063 W 0402
R1481430742Chip resistor390 5 % 0.063 W 0402
R1491430730Chip resistor150 5 % 0.063 W 0402
R1501430700Chip resistor10 5 % 0.063 W 0402
R1511430700Chip resistor10 5 % 0.063 W 0402
R1521430700Chip resistor10 5 % 0.063 W 0402
R1531430764Chip resistor3.3 k5 % 0.063 W 0402
R1541430746Chip resistor560 5 % 0.063 W 0402
System Module
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NHP–4
System Module
R1551430746Chip resistor560 5 % 0.063 W 0402
R1561430710Chip resistor22 5 % 0.063 W 0402
R1571430726Chip resistor100 5 % 0.063 W 0402
R3001430766Chip resistor3.9 k5 % 0.063 W 0402
R3011430764Chip resistor3.3 k5 % 0.063 W 0402
R3021430756Chip resistor1.2 k5 % 0.063 W 0402
R3031430754Chip resistor1.0 k5 % 0.063 W 0402
R3041430754Chip resistor1.0 k5 % 0.063 W 0402
R3051430734Chip resistor220 5 % 0.063 W 0402
R3061430754Chip resistor1.0 k5 % 0.063 W 0402
R3071800659NTC resistor47 k10 % 0.12 W 0805
R3081430794Chip resistor39 k5 % 0.063 W 0402
R3091430770Chip resistor4.7 k5 % 0.063 W 0402
R3101430770Chip resistor4.7 k5 % 0.063 W 0402
R3121430700Chip resistor10 5 % 0.063 W 0402
R3131430754Chip resistor1.0 k5 % 0.063 W 0402
R3141430744Chip resistor470 5 % 0.063 W 0402
R3151430702Chip resistor12 5 % 0.063 W 0402
R3161430744Chip resistor470 5 % 0.063 W 0402
R3171430754Chip resistor1.0 k5 % 0.063 W 0402
R3181430740Chip resistor330 5 % 0.063 W 0402
R3191430708Chip resistor18 5 % 0.063 W 0402
R3201430740Chip resistor330 5 % 0.063 W 0402
R3211430710Chip resistor22 5 % 0.063 W 0402
R3221430740Chip resistor330 5 % 0.063 W 0402
R3231430800Chip resistor68 k5 % 0.063 W 0402
R3241430810Chip resistor180 k5 % 0.063 W 0402
R3251430840Chip resistor220 k1 % 0.063 W 0402
R3261430800Chip resistor68 k5 % 0.063 W 0402
R3271430810Chip resistor180 k5 % 0.063 W 0402
R3281430800Chip resistor68 k5 % 0.063 W 0402
R3291430808Chip resistor150 k5 % 0.063 W 0402
R3301430808Chip resistor150 k5 % 0.063 W 0402
R3311430780Chip resistor12 k5 % 0.063 W 0402
R3321430690Chip jumper0402
R3331430792Chip resistor33 k5 % 0.063 W 0402
R3341430710Chip resistor22 5 % 0.063 W 0402
R3351430800Chip resistor68 k5 % 0.063 W 0402
R3361430798Chip resistor56 k5 % 0.063 W 0402
R3371430778Chip resistor10 k5 % 0.063 W 0402
R3381430792Chip resistor33 k5 % 0.063 W 0402
R3391430726Chip resistor100 5 % 0.063 W 0402
R3401430778Chip resistor10 k5 % 0.063 W 0402
Technical Documentation
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Technical Documentation
R3411430690Chip jumper0402
R3421430700Chip resistor10 5 % 0.063 W 0402
R3431430700Chip resistor10 5 % 0.063 W 0402
R3441430702Chip resistor12 5 % 0.063 W 0402
R3451430756Chip resistor1.2 k5 % 0.063 W 0402
R3461430776Chip resistor8.2 k5 % 0.063 W 0402
R3471430712Chip resistor27 5 % 0.063 W 0402
R3481430754Chip resistor1.0 k5 % 0.063 W 0402
R3491430774Chip resistor6.8 k5 % 0.063 W 0402
R3521430754Chip resistor1.0 k5 % 0.063 W 0402
R3531430742Chip resistor390 5 % 0.063 W 0402
R3541430742Chip resistor390 5 % 0.063 W 0402
R3551430754Chip resistor1.0 k5 % 0.063 W 0402
R3561430772Chip resistor5.6 k5 % 0.063 W 0402
R3571430772Chip resistor5.6 k5 % 0.063 W 0402
R3581430772Chip resistor5.6 k5 % 0.063 W 0402
R3591430772Chip resistor5.6 k5 % 0.063 W 0402
R3601430700Chip resistor10 5 % 0.063 W 0402
R5081430690Chip jumper0402
R7001430700Chip resistor10 5 % 0.063 W 0402
R7011430794Chip resistor39 k5 % 0.063 W 0402
R7021430800Chip resistor68 k5 % 0.063 W 0402
R7031430770Chip resistor4.7 k5 % 0.063 W 0402
R7041430778Chip resistor10 k5 % 0.063 W 0402
R7051430804Chip resistor100 k5 % 0.063 W 0402
R7061430804Chip resistor100 k5 % 0.063 W 0402
R7071430135Chip resistor10 M5 % 0.063 W 0603
R7081430321Chip resistor261 k1 % 0.063 W 0603
R7091430317Chip resistor220 k1 % 0.063 W 0603
R7101430744Chip resistor470 5 % 0.063 W 0402
R7111430853Chip resistor2.2 M5 % 0.063 W 0402
R7121430804Chip resistor100 k5 % 0.063 W 0402
R7131430859Chip resistor150 k1 % 0.063 W 0402
R7141430840Chip resistor220 k1 % 0.063 W 0402
R7151430317Chip resistor220 k1 % 0.063 W 0603
R7161430726Chip resistor100 5 % 0.063 W 0402
R7171430726Chip resistor100 5 % 0.063 W 0402
R7181430804Chip resistor100 k5 % 0.063 W 0402
R7191430778Chip resistor10 k5 % 0.063 W 0402
R7201430690Chip jumper0402
R7211430820Chip resistor470 k5 % 0.063 W 0402
R7221430820Chip resistor470 k5 % 0.063 W 0402
R7231430043Chip resistor2.2 k5 % 0.063 W 0603
System Module
Issue 1 04/99
Page 4–45
NHP–4
System Module
R7241430820Chip resistor470 k5 % 0.063 W 0402
R7251430804Chip resistor100 k5 % 0.063 W 0402
R7261430043Chip resistor2.2 k5 % 0.063 W 0603
R7271430800Chip resistor68 k5 % 0.063 W 0402
R7281430804Chip resistor100 k5 % 0.063 W 0402
R7291430812Chip resistor220 k5 % 0.063 W 0402
R7301430820Chip resistor470 k5 % 0.063 W 0402
R7311430790Chip resistor27 k5 % 0.063 W 0402
R7331430744Chip resistor470 5 % 0.063 W 0402
R7351430700Chip resistor10 5 % 0.063 W 0402
R7361430804Chip resistor100 k5 % 0.063 W 0402
R7371430726Chip resistor100 5 % 0.063 W 0402
R7381430726Chip resistor100 5 % 0.063 W 0402
R7391430726Chip resistor100 5 % 0.063 W 0402
R7401430820Chip resistor470 k5 % 0.063 W 0402
R7411430800Chip resistor68 k5 % 0.063 W 0402
R7421430788Chip resistor22 k5 % 0.063 W 0402
R7431825005Chip varistor vwm14v vc30v 0805
R7441430788Chip resistor22 k5 % 0.063 W 0402
R7451430859Chip resistor150 k1 % 0.063 W 0402
R7461430788Chip resistor22 k5 % 0.063 W 0402
R7471800659NTC resistor47 k10 % 0.12 W 0805
R7481430726Chip resistor100 5 % 0.063 W 0402
R7491430788Chip resistor22 k5 % 0.063 W 0402
R7501430804Chip resistor100 k5 % 0.063 W 0402
R7511430832Chip resistor2.7 k5 % 0.063 W 0402
R7521430788Chip resistor22 k5 % 0.063 W 0402
R7531430778Chip resistor10 k5 % 0.063 W 0402
R7541430135Chip resistor10 M5 % 0.063 W 0603
R7551430690Chip jumper0402
R7571430820Chip resistor470 k5 % 0.063 W 0402
R7581430033Chip resistor150 k1 % 0.063 W 0603
R7601430726Chip resistor100 5 % 0.063 W 0402
R7611430726Chip resistor100 5 % 0.063 W 0402
R7621430726Chip resistor100 5 % 0.063 W 0402
R7631430754Chip resistor1.0 k5 % 0.063 W 0402
R7641430726Chip resistor100 5 % 0.063 W 0402
R7651430754Chip resistor1.0 k5 % 0.063 W 0402
R7661430726Chip resistor100 5 % 0.063 W 0402
R7671430754Chip resistor1.0 k5 % 0.063 W 0402
R7681430770Chip resistor4.7 k5 % 0.063 W 0402
R7691430754Chip resistor1.0 k5 % 0.063 W 0402
R7701430754Chip resistor1.0 k5 % 0.063 W 0402
Technical Documentation
PAMS
Page 4–46
Issue 1 04/99
PAMS
NHP–4
Technical Documentation
R7711430726Chip resistor100 5 % 0.063 W 0402
R7721430726Chip resistor100 5 % 0.063 W 0402
R7731430754Chip resistor1.0 k5 % 0.063 W 0402
R7741430778Chip resistor10 k5 % 0.063 W 0402
R7751430780Chip resistor12 k5 % 0.063 W 0402
R7761430758Chip resistor1.5 k5 % 0.063 W 0402
R7771430690Chip jumper0402
R7781430690Chip jumper0402
R7791430804Chip resistor100 k5 % 0.063 W 0402
R7801430792Chip resistor33 k5 % 0.063 W 0402
R7811430792Chip resistor33 k5 % 0.063 W 0402
R7821430794Chip resistor39 k5 % 0.063 W 0402
R7831430804Chip resistor100 k5 % 0.063 W 0402
R7841430726Chip resistor100 5 % 0.063 W 0402
R7851430830Chip resistor1.0 M5 % 0.063 W 0402
R7871430848Chip resistor12 k1 % 0.063 W 0402
R7881430848Chip resistor12 k1 % 0.063 W 0402
R7891430848Chip resistor12 k1 % 0.063 W 0402
R7901430848Chip resistor12 k1 % 0.063 W 0402
R7921430031Chip resistor100 k5 % 0.063 W 0402
R7931430778Chip resistor10 k5 % 0.063 W 0402
R7941430738Chip resistor270 5 % 0.063 W 0402
R7951430778Chip resistor10 k5 % 0.063 W 0402
R7961430744Chip resistor470 5 % 0.063 W 0402
R7971430744Chip resistor470 5 % 0.063 W 0402
R7991430808Chip resistor150 k5 % 0.063 W 0402
R8001430808Chip resistor150 k5 % 0.063 W 0402
R8011430700Chip resistor10 5 % 0.063 W 0402
C0012320526Ceramic cap.3.9 p0.25 % 50 V 0402
C0022309570Ceramic cap.Y5 V 1206
C0032320620Ceramic cap.10 n5 % 16 V 0402
C0042610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C0072320522Ceramic cap.2.7 p0.25 % 50 V 0402
C0112320604Ceramic cap.18 p5 % 50 V 0402
C0132320620Ceramic cap.10 n5 % 16 V 0402
C0152320520Ceramic cap.2.2 p0.25 % 50 V 0402
C0162320576Ceramic cap.470 p5 % 50 V 0402
C0172320620Ceramic cap.10 n5 % 16 V 0402
C0182320584Ceramic cap.1.0 n5 % 50 V 0402
C0192320604Ceramic cap.18 p5 % 50 V 0402
C0202320520Ceramic cap.2.2 p0.25 % 50 V 0402
C0212320620Ceramic cap.10 n5 % 16 V 0402
C0222320584Ceramic cap.1.0 n5 % 50 V 0402
System Module
Issue 1 04/99
Page 4–47
NHP–4
System Module
C0232312401Ceramic cap.1.0 u10 % 10 V 0805
C0242320604Ceramic cap.18 p5 % 50 V 0402
C0252320584Ceramic cap.1.0 n5 % 50 V 0402
C0262610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C0272320620Ceramic cap.10 n5 % 16 V 0402
C0282309570Ceramic cap.Y5 V 1206
C0292320584Ceramic cap.1.0 n5 % 50 V 0402
C0302320540Ceramic cap.15 p5 % 50 V 0402
C0312320781Ceramic cap.47 n20 % 16 V 0603
C0322320781Ceramic cap.47 n20 % 16 V 0603
C0332320540Ceramic cap.15 p5 % 50 V 0402
C0342320604Ceramic cap.18 p5 % 50 V 0402
C0352320620Ceramic cap.10 n5 % 16 V 0402
C0362320584Ceramic cap.1.0 n5 % 50 V 0402
C0372320620Ceramic cap.10 n5 % 16 V 0402
C0382320620Ceramic cap.10 n5 % 16 V 0402
C0392312401Ceramic cap.1.0 u10 % 10 V 0805
C0402320620Ceramic cap.10 n5 % 16 V 0402
C0412320584Ceramic cap.1.0 n5 % 50 V 0402
C0422320604Ceramic cap.18 p5 % 50 V 0402
C0432310784Ceramic cap.100 n10 % 25 V 0805
C0442320620Ceramic cap.10 n5 % 16 V 0402
C0452320620Ceramic cap.10 n5 % 16 V 0402
C0462320620Ceramic cap.10 n5 % 16 V 0402
C0472320604Ceramic cap.18 p5 % 50 V 0402
C0482320560Ceramic cap.100 p5 % 50 V 0402
C0492320536Ceramic cap.10 p5 % 50 V 0402
C0502320781Ceramic cap.47 n20 % 16 V 0603
C0512320781Ceramic cap.47 n20 % 16 V 0603
C0522320781Ceramic cap.47 n20 % 16 V 0603
C0532312401Ceramic cap.1.0 u10 % 10 V 0805
C0542320540Ceramic cap.15 p5 % 50 V 0402
C0552320620Ceramic cap.10 n5 % 16 V 0402
C0562320779Ceramic cap.100 n10 % 16 V 0603
C0572320781Ceramic cap.47 n20 % 16 V 0603
C0582320584Ceramic cap.1.0 n5 % 50 V 0402
C0592320552Ceramic cap.47 p5 % 50 V 0402
C0602320620Ceramic cap.10 n5 % 16 V 0402
C0612320548Ceramic cap.33 p5 % 50 V 0402
C1002320556Ceramic cap.68 p5 % 50 V 0402
C1012320620Ceramic cap.10 n5 % 16 V 0402
C1022610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1032320584Ceramic cap.1.0 n5 % 50 V 0402
Technical Documentation
PAMS
Page 4–48
Issue 1 04/99
PAMS
NHP–4
Technical Documentation
C1042320779Ceramic cap.100 n10 % 16 V 0603
C1052320604Ceramic cap.18 p5 % 50 V 0402
C1062320548Ceramic cap.33 p5 % 50 V 0402
C1072320556Ceramic cap.68 p5 % 50 V 0402
C1082320556Ceramic cap.68 p5 % 50 V 0402
C1092320604Ceramic cap.18 p5 % 50 V 0402
C1102320620Ceramic cap.10 n5 % 16 V 0402
C1112320620Ceramic cap.10 n5 % 16 V 0402
C1122320538Ceramic cap.12 p5 % 50 V 0402
C1132320552Ceramic cap.47 p5 % 50 V 0402
C1142610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1152320620Ceramic cap.10 n5 % 16 V 0402
C1162320620Ceramic cap.10 n5 % 16 V 0402
C1172320540Ceramic cap.15 p5 % 50 V 0402
C1182320620Ceramic cap.10 n5 % 16 V 0402
C1192320620Ceramic cap.10 n5 % 16 V 0402
C1202320572Ceramic cap.330 p5 % 50 V 0402
C1212320620Ceramic cap.10 n5 % 16 V 0402
C1222320536Ceramic cap.10 p5 % 50 V 0402
C1232320536Ceramic cap.10 p5 % 50 V 0402
C1242610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1252320131Ceramic cap.33 n10 % 16 V 0603
C1262320602Ceramic cap.4.7 p0.25 % 50 V 0402
C1272320620Ceramic cap.10 n5 % 16 V 0402
C1282312401Ceramic cap.1.0 u10 % 10 V 0805
C1292320602Ceramic cap.4.7 p0.25 % 50 V 0402
C1302320596Ceramic cap.3.3 n5 % 50 V 0402
C1312320620Ceramic cap.10 n5 % 16 V 0402
C1322320620Ceramic cap.10 n5 % 16 V 0402
C1332320604Ceramic cap.18 p5 % 50 V 0402
C1342320604Ceramic cap.18 p5 % 50 V 0402
C1352320620Ceramic cap.10 n5 % 16 V 0402
C1362320620Ceramic cap.10 n5 % 16 V 0402
C1372610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1382320620Ceramic cap.10 n5 % 16 V 0402
C1392310784Ceramic cap.100 n10 % 25 V 0805
C1402309570Ceramic cap.Y5 V 1206
C1412320596Ceramic cap.3.3 n5 % 50 V 0402
C1422610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1432320568Ceramic cap.220 p5 % 50 V 0402
C1442320584Ceramic cap.1.0 n5 % 50 V 0402
C1452320592Ceramic cap.2.2 n5 % 50 V 0402
C1462610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
System Module
Issue 1 04/99
Page 4–49
NHP–4
System Module
C1472320620Ceramic cap.10 n5 % 16 V 0402
C1482320604Ceramic cap.18 p5 % 50 V 0402
C1492320604Ceramic cap.18 p5 % 50 V 0402
C1502320781Ceramic cap.47 n20 % 16 V 0603
C1512320620Ceramic cap.10 n5 % 16 V 0402
C1522610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1532310784Ceramic cap.100 n10 % 25 V 0805
C1542320620Ceramic cap.10 n5 % 16 V 0402
C1552610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1562320620Ceramic cap.10 n5 % 16 V 0402
C1572610200Tantalum cap.2.2 u20 % 2.0x1.3x1.2
C1582310784Ceramic cap.100 n10 % 25 V 0805
C1592320604Ceramic cap.18 p5 % 50 V 0402
C1602309570Ceramic cap.Y5 V 1206
C1612610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1622320604Ceramic cap.18 p5 % 50 V 0402
C1632320584Ceramic cap.1.0 n5 % 50 V 0402
C1642320620Ceramic cap.10 n5 % 16 V 0402
C1652320620Ceramic cap.10 n5 % 16 V 0402
C1662320544Ceramic cap.22 p5 % 50 V 0402
C1672320536Ceramic cap.10 p5 % 50 V 0402
C1682320558Ceramic cap.82 p5 % 50 V 0402
C1692320540Ceramic cap.15 p5 % 50 V 0402
C1702320532Ceramic cap.6.8 p0.25 % 50 V 0402
C1712320779Ceramic cap.100 n10 % 16 V 0603
C1722320620Ceramic cap.10 n5 % 16 V 0402
C1732610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1742320604Ceramic cap.18 p5 % 50 V 0402
C1752320620Ceramic cap.10 n5 % 16 V 0402
C1762320604Ceramic cap.18 p5 % 50 V 0402
C1772320524Ceramic cap.3.3 p0.25 % 50 V 0402
C1782320604Ceramic cap.18 p5 % 50 V 0402
C1792320620Ceramic cap.10 n5 % 16 V 0402
C1802320550Ceramic cap.39 p5 % 50 V 0402
C1812312401Ceramic cap.1.0 u10 % 10 V 0805
C1822320779Ceramic cap.100 n10 % 16 V 0603
C1832320584Ceramic cap.1.0 n5 % 50 V 0402
C1842320620Ceramic cap.10 n5 % 16 V 0402
C1852610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C1862320620Ceramic cap.10 n5 % 16 V 0402
C1872320620Ceramic cap.10 n5 % 16 V 0402
C1882320620Ceramic cap.10 n5 % 16 V 0402
C1892310784Ceramic cap.100 n10 % 25 V 0805
Technical Documentation
PAMS
Page 4–50
Issue 1 04/99
PAMS
NHP–4
Technical Documentation
C3002312293Ceramic cap.Y5 V 1206
C3012320538Ceramic cap.12 p5 % 50 V 0402
C3022320584Ceramic cap.1.0 n5 % 50 V 0402
C3032320779Ceramic cap.100 n10 % 16 V 0603
C3042320584Ceramic cap.1.0 n5 % 50 V 0402
C3052320620Ceramic cap.10 n5 % 16 V 0402
C3062320779Ceramic cap.100 n10 % 16 V 0603
C3072320518Ceramic cap.1.8 p0.25 % 50 V 0402
C3082320516Ceramic cap.1.5 p0.25 % 50 V 0402
C3092320520Ceramic cap.2.2 p0.25 % 50 V 0402
C3102309570Ceramic cap.Y5 V 1206
C3112320538Ceramic cap.12 p5 % 50 V 0402
C3122320520Ceramic cap.2.2 p0.25 % 50 V 0402
C3132320604Ceramic cap.18 p5 % 50 V 0402
C3142320538Ceramic cap.12 p5 % 50 V 0402
C3152320584Ceramic cap.1.0 n5 % 50 V 0402
C3162320584Ceramic cap.1.0 n5 % 50 V 0402
C3172320779Ceramic cap.100 n10 % 16 V 0603
C3192320584Ceramic cap.1.0 n5 % 50 V 0402
C3202320538Ceramic cap.12 p5 % 50 V 0402
C3222320620Ceramic cap.10 n5 % 16 V 0402
C3232320620Ceramic cap.10 n5 % 16 V 0402
C3242320560Ceramic cap.100 p5 % 50 V 0402
C3252320538Ceramic cap.12 p5 % 50 V 0402
C3262320584Ceramic cap.1.0 n5 % 50 V 0402
C3272320538Ceramic cap.12 p5 % 50 V 0402
C3282320508Ceramic cap.1.0 p0.25 % 50 V 0402
C3292320584Ceramic cap.1.0 n5 % 50 V 0402
C3302320530Ceramic cap.5.6 p0.25 % 50 V 0402
C3312320558Ceramic cap.82 p5 % 50 V 0402
C3322320620Ceramic cap.10 n5 % 16 V 0402
C3332320620Ceramic cap.10 n5 % 16 V 0402
C3342320620Ceramic cap.10 n5 % 16 V 0402
C3352320779Ceramic cap.100 n10 % 16 V 0603
C3362320620Ceramic cap.10 n5 % 16 V 0402
C3372320584Ceramic cap.1.0 n5 % 50 V 0402
C3382320620Ceramic cap.10 n5 % 16 V 0402
C3392320779Ceramic cap.100 n10 % 16 V 0603
C3402320781Ceramic cap.47 n20 % 16 V 0603
C3412320508Ceramic cap.1.0 p0.25 % 50 V 0402
C3422320538Ceramic cap.12 p5 % 50 V 0402
C3432320538Ceramic cap.12 p5 % 50 V 0402
C3442320538Ceramic cap.12 p5 % 50 V 0402
System Module
Issue 1 04/99
Page 4–51
NHP–4
System Module
C3452320516Ceramic cap.1.5 p0.25 % 50 V 0402
C3462320518Ceramic cap.1.8 p0.25 % 50 V 0402
C3472320620Ceramic cap.10 n5 % 16 V 0402
C3482320538Ceramic cap.12 p5 % 50 V 0402
C3492320538Ceramic cap.12 p5 % 50 V 0402
C3502320584Ceramic cap.1.0 n5 % 50 V 0402
C3512320538Ceramic cap.12 p5 % 50 V 0402
C3522320538Ceramic cap.12 p5 % 50 V 0402
C3532320560Ceramic cap.100 p5 % 50 V 0402
C3542320538Ceramic cap.12 p5 % 50 V 0402
C3552320584Ceramic cap.1.0 n5 % 50 V 0402
C3562320584Ceramic cap.1.0 n5 % 50 V 0402
C3572320538Ceramic cap.12 p5 % 50 V 0402
C3582320538Ceramic cap.12 p5 % 50 V 0402
C3592320620Ceramic cap.10 n5 % 16 V 0402
C3602309570Ceramic cap.Y5 V 1206
C3612320584Ceramic cap.1.0 n5 % 50 V 0402
C3622610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C3632310784Ceramic cap.100 n10 % 25 V 0805
C3642320620Ceramic cap.10 n5 % 16 V 0402
C3652320538Ceramic cap.12 p5 % 50 V 0402
C3662320538Ceramic cap.12 p5 % 50 V 0402
C3672320538Ceramic cap.12 p5 % 50 V 0402
C3682320584Ceramic cap.1.0 n5 % 50 V 0402
C3692310784Ceramic cap.100 n10 % 25 V 0805
C3702610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C3712320534Ceramic cap.8.2 p0.25 % 50 V 0402
C3722320524Ceramic cap.3.3 p0.25 % 50 V 0402
C3732320604Ceramic cap.18 p5 % 50 V 0402
C3742320620Ceramic cap.10 n5 % 16 V 0402
C3752320584Ceramic cap.1.0 n5 % 50 V 0402
C3762320584Ceramic cap.1.0 n5 % 50 V 0402
C3772320620Ceramic cap.10 n5 % 16 V 0402
C3782320584Ceramic cap.1.0 n5 % 50 V 0402
C3792320538Ceramic cap.12 p5 % 50 V 0402
C3802320540Ceramic cap.15 p5 % 50 V 0402
C3812320544Ceramic cap.22 p5 % 50 V 0402
C3822320544Ceramic cap.22 p5 % 50 V 0402
C3832320779Ceramic cap.100 n10 % 16 V 0603
C3842320779Ceramic cap.100 n10 % 16 V 0603
C3852320779Ceramic cap.100 n10 % 16 V 0603
C3862320779Ceramic cap.100 n10 % 16 V 0603
C3872320584Ceramic cap.1.0 n5 % 50 V 0402
Technical Documentation
PAMS
Page 4–52
Issue 1 04/99
PAMS
NHP–4
Technical Documentation
C3882320538Ceramic cap.12 p5 % 50 V 0402
C7002320620Ceramic cap.10 n5 % 16 V 0402
C7012320584Ceramic cap.1.0 n5 % 50 V 0402
C7022611675Tantalum cap.0.47 u20 % 16 V 2.0x1.25x1.2
C7032320584Ceramic cap.1.0 n5 % 50 V 0402
C7042320620Ceramic cap.10 n5 % 16 V 0402
C7052310003Ceramic cap.470 n10 % 16 V 0805
C7062310003Ceramic cap.470 n10 % 16 V 0805
C7072310003Ceramic cap.470 n10 % 16 V 0805
C7092309570Ceramic cap.Y5 V 1206
C7102310003Ceramic cap.470 n10 % 16 V 0805
C7112320620Ceramic cap.10 n5 % 16 V 0402
C7122320560Ceramic cap.100 p5 % 50 V 0402
C7132320560Ceramic cap.100 p5 % 50 V 0402
C7142310003Ceramic cap.470 n10 % 16 V 0805
C7152310003Ceramic cap.470 n10 % 16 V 0805
C7162320779Ceramic cap.100 n10 % 16 V 0603
C7172320779Ceramic cap.100 n10 % 16 V 0603
C7182320620Ceramic cap.10 n5 % 16 V 0402
C7192310003Ceramic cap.470 n10 % 16 V 0805
C7202611701Tantalum cap.47 u20 % 25 V 7.3x4.3x2.9
C7212611701Tantalum cap.47 u20 % 25 V 7.3x4.3x2.9
C7222320584Ceramic cap.1.0 n5 % 50 V 0402
C7232320620Ceramic cap.10 n5 % 16 V 0402
C7242320584Ceramic cap.1.0 n5 % 50 V 0402
C7252320584Ceramic cap.1.0 n5 % 50 V 0402
C7262320560Ceramic cap.100 p5 % 50 V 0402
C7272320620Ceramic cap.10 n5 % 16 V 0402
C7282310003Ceramic cap.470 n10 % 16 V 0805
C7292310003Ceramic cap.470 n10 % 16 V 0805
C7302320620Ceramic cap.10 n5 % 16 V 0402
C7312320620Ceramic cap.10 n5 % 16 V 0402
C7322310784Ceramic cap.100 n10 % 25 V 0805
C7332320560Ceramic cap.100 p5 % 50 V 0402
C7342310003Ceramic cap.470 n10 % 16 V 0805
C7352320620Ceramic cap.10 n5 % 16 V 0402
C7362320131Ceramic cap.33 n10 % 16 V 0603
C7372310003Ceramic cap.470 n10 % 16 V 0805
C7382320560Ceramic cap.100 p5 % 50 V 0402
C7392310003Ceramic cap.470 n10 % 16 V 0805
C7402320560Ceramic cap.100 p5 % 50 V 0402
C7412320560Ceramic cap.100 p5 % 50 V 0402
C7422610105Tantalum cap.100 u20 % 10 V 7.3x4.3x2.9
System Module
Issue 1 04/99
Page 4–53
NHP–4
System Module
C7432310003Ceramic cap.470 n10 % 16 V 0805
C7442312403Ceramic cap.2.2 u10 % 10 V 1206
C7452320560Ceramic cap.100 p5 % 50 V 0402
C7462320131Ceramic cap.33 n10 % 16 V 0603
C7472310003Ceramic cap.470 n10 % 16 V 0805
C7482320560Ceramic cap.100 p5 % 50 V 0402
C7492320544Ceramic cap.22 p5 % 50 V 0402
C7502320584Ceramic cap.1.0 n5 % 50 V 0402
C7512320560Ceramic cap.100 p5 % 50 V 0402
C7532320544Ceramic cap.22 p5 % 50 V 0402
C7542320620Ceramic cap.10 n5 % 16 V 0402
C7552320620Ceramic cap.10 n5 % 16 V 0402
C7562310003Ceramic cap.470 n10 % 16 V 0805
C7572310003Ceramic cap.470 n10 % 16 V 0805
C7582310003Ceramic cap.470 n10 % 16 V 0805
C7592310003Ceramic cap.470 n10 % 16 V 0805
C7602320584Ceramic cap.1.0 n5 % 50 V 0402
C7612310003Ceramic cap.470 n10 % 16 V 0805
C7622610105Tantalum cap.100 u20 % 10 V 7.3x4.3x2.9
C7632310003Ceramic cap.470 n10 % 16 V 0805
C7642320560Ceramic cap.100 p5 % 50 V 0402
C7652320131Ceramic cap.33 n10 % 16 V 0603
C7662320781Ceramic cap.47 n20 % 16 V 0603
C7672320781Ceramic cap.47 n20 % 16 V 0603
C7682320131Ceramic cap.33 n10 % 16 V 0603
C7692320131Ceramic cap.33 n10 % 16 V 0603
C7702320781Ceramic cap.47 n20 % 16 V 0603
C7712320779Ceramic cap.100 n10 % 16 V 0603
C7722610003Tantalum cap.10 u20 % 10 V 3.2x1.6x1.6
C7732312401Ceramic cap.1.0 u10 % 10 V 0805
C7742310003Ceramic cap.470 n10 % 16 V 0805
C7752310003Ceramic cap.470 n10 % 16 V 0805
C7762320584Ceramic cap.1.0 n5 % 50 V 0402
C7772320584Ceramic cap.1.0 n5 % 50 V 0402
C7782320544Ceramic cap.22 p5 % 50 V 0402
C7792310003Ceramic cap.470 n10 % 16 V 0805
C7802320544Ceramic cap.22 p5 % 50 V 0402
C7812320779Ceramic cap.100 n10 % 16 V 0603
C7852312401Ceramic cap.1.0 u10 % 10 V 0805
C8172320620Ceramic cap.10 n5 % 16 V 0402
C8182320779Ceramic cap.100 n10 % 16 V 0603
C8192610005Tantalum cap.10 u20 % 16 V 3.5x2.8x1.9
C8202320536Ceramic cap.10 p5 % 50 V 0402